Shorts/Bottoms

$120.00
Cold legs make for bad rides, and bad rides are no fun. Lucky for you, the RBX Comp Thermal Bib Knickers keep your legs toasty on chilly days.
And to top off the comfort, we've used our Body Geometry 3D Contour Chamois with a variable density design that places support and padding where you need it, not where you don't.
- 17" inseam (size Medium)
- Fabric Content: TIGHT: 84% Polyamide, 16% Elastane; UPPER: 75% Polyamide, 25% Elastane
- Made of soft and resistant Lombardia fleece, which stretches in two directions for comfort and easy care.

$90.00
When it comes to choosing the perfect pair of bib shorts, comfort is everything. And for anyone whose rides demand premium materials, superior fit, and cutting-edge technologies, the new RBX bib shorts are sure to be your jam.
We designed an open suspender fit and bib construction that's engineered to keep the shorts up and in-place without constricting the upper body. The stretchy elastic suspenders are uber plush and soft against the skin, and accommodate taller torso lengths with ease. A non-stretch, sail cloth center back panel is laser-cut for breathability and anchors the back of the shorts for added stability. Silicone-infused fabric cuffs, meanwhile, provide a gentle, secure hold on the legs in order to ensure the perfect, shift-free fit.
Our new Body Geometry Contour chamois also adds unrivaled comfort by minimizing its total footprint and keeping only what's structurally necessary. This minimizes pressure on nerves and soft tissue, while also maintaining the optimal level of support.
- Soft and supportive four-way stretch fabric provides ample comfort and a soft hand.
- Soft mesh bib uppers with binding provide a comfortable hold.
- Silicone-infused fabric cuff provides a gentle, secure hold on the legs in order to ensure the perfect, shift-free fit.
- Articulated design ensures the perfect fit while in the riding position.
- Reflective elements increase your visibility to motorists in low-light conditions.
- UPF 50+ rating protects your skin from harmful ultraviolet rays.
- Single-density-foam Body Geometry Contour Chamois is pre-molded to match the shape of the body for exceptional comfort.
- Slim Fit with a 10.5" inseam.

$70.00
When it comes to choosing the perfect cycling shorts, comfort is everything. Whether you're going fast or just cruising, it's important to know that you'll be comfy. For riders who want premium materials, superior fit, and technologies that you won't find anywhere else, the new RBX Shorts are the jam. The soft four-way stretch fabric and articulated design ensure a perfect fit, but where the real comfort comes is from our new 3D Chamois. It features a pre-molded shape that matches the curve of your saddle, reducing wrinkles and hot spots. Top it off with a super soft top sheet to reduce friction and you're left with all day comfort.
- Four-way stretch fabric provides ample comfort and a soft hand.
- Silicone-infused fabric cuff provides a gentle, secure hold on the legs in order to ensure the perfect, shift-free fit.
- Articulated design ensures the perfect fit while in the riding position.
- Reflective elements increase your visibility to motorists in low-light conditions.
- UPF 50+ rating protects your skin from harmful ultraviolet rays.
- 3D Chamois is pre-molded to match the shape of the body for exceptional comfort.
- Slim Fit with a 10.5" inseam (size Medium).

$180.00
There's quite a few boxes that your "favorite pair of bib shorts" must check. The chamois has to be perfect—soft to touch, foam in all the right places, and perfect shape. And the materials must be compressive, yet still comfortable while being sized correctly. It's been a lengthy process, but we're happy to say that the SL Race Bib Shorts check all the right boxes. The pre-molded, triple-density foam Body Geometry Contour 3D Chamois is contoured to perfectly match the curvature of your body, all while being soft and supportive in all the right places. The other part of the comfort equation is the extremely stretchy, soft bib straps paired with a soft four-way stretch fabric. On the performance side, the same four-way stretch fabric also features plenty of compression, for long days in the saddle. The three-inch-tall silicone cuff also ensures that your bibs stay in place in a variety of conditions.
- Compressive four-way stretch fabric provides ample leg support, comfort, and a soft hand.
- The open suspender construction is designed to keep the bibs in place without constricting the upper body. Stretchy elastic suspenders are extremely plush and soft against the skin and they accommodate taller torso lengths with ease.
- Silicone-infused, 3-inch-tall fabric cuff provides a gentle, secure hold on the legs for the perfect, shift-free fit.
- Articulated design ensures the perfect fit while in the riding position.
- Reflective elements increase your visibility to motorists in low-light conditions.
- UPF 50+ rating protects your skin from harmful ultraviolet rays.
- Triple-density-foam, Performance Body Geometry Contour 3D Chamois is pre-molded to match the shape of the body for exceptional comfort.
- Slim Fit with an 11" inseam (size Medium).

$130.00
If you don't have to shovel your sidewalk to get your bike out for a winter ride, you probably don't need bib tights that are designed for freezing temperatures. Instead, you might be more comfortable in something like our Women's Therminal Bib Knickers this winter.
For the construction, they feature our Therminal fabric, which is designed to both insulate and manage moisture buildup. To do so, they have a brushed fleece interior with a light loft that pulls moisture away from skin to evaporate at the material's surface. This loft also has the added benefit of insulation, which occurs by trapping tiny pockets of warmth between the skin and the fabric. The result? Consistent warmth that doesn't come with the risk of overheating.
As for the fit, they have an articulated design that conforms to your body. This means that the shorts and uppers will follow your movements, not work against them. And as a result, these bib knickers won't cause any chafing, unwanted rubbing, or pinching.
For the insert, you'll find our Women's Body Geometry 3D Contour Chamois. It features a variable density design that places support and padding where you need it, not where you don't. And as a result, you'll find that it significantly reduces pressure on soft tissue and nerves, creating a ride feel and degree of comfort that's nothing short of sublime.
- Therminal fabrics feature remarkable insulating properties, astounding levels of breathability and moisture management, and a lightweight, brushed back fleece that's soft against the skin.
- Articulated cycling fit is designed to complement the body throughout the positions and movements of cycling, which eliminates any unwanted pinching, rubbing, or chafing.
- Reflective elements increase your visibility to motorists in low-light conditions.
- Body Geometry Women's 3D Contour Chamois features a variable density design that places support and padding where you need it, not where you don't. This ensures that the chamois won't feel bulky or in the way of your pedal stroke.
- Deflect UV 50+ protects against harmful UV rays.
- 18-inch inseam (size Medium)
- Fabric weight: 320g

$130.00
If you don't have to shovel your sidewalk to get your bike out for a winter ride, you probably don't need bib tights that are designed for freezing temperatures. Instead, you might be more comfortable in something like our Therminal Bib Knickers this winter.
For the construction, they feature our Therminal fabric, which is designed to both insulate and manage moisture buildup. To do so, they have a brushed fleece interior with a light loft that pulls moisture away from skin to evaporate at the material's surface. This loft also has the added benefit of insulation, which occurs by trapping tiny pockets of warmth between the skin and the fabric. The result? Consistent warmth that doesn't come with the risk of overheating.
As for the fit, they have an articulated design that conforms to your body. This means that the shorts and uppers will follow your movements, not work against them. And as a result, these bib knickers won't cause any chafing, unwanted rubbing, or pinching.
For the insert, you'll find our Body Geometry 3D Contour Chamois. It features a variable density design that places support and padding where you need it, not where you don't. And as a result, you'll find that it significantly reduces pressure on soft tissue and nerves, creating a ride feel and degree of comfort that's nothing short of sublime.
- Therminal fabrics feature remarkable insulating properties, astounding levels of breathability and moisture management, and a lightweight, brushed back fleece that's soft against the skin
- Articulated cycling fit is designed to complement the body throughout the positions and movements of cycling, which eliminates any unwanted pinching, rubbing, or chafing.
- Reflective elements increase your visibility to motorists in low-light conditions.
- Body Geometry 3D Contour Chamois features a variable density design that places support and padding where you need it, not where you don't. This ensures that the chamois won't feel bulky or in the way of your pedal stroke.
- Deflect UV 50+ protects against harmful UV rays.
- 17-inch inseam (size Medium)
- Fabric weight: 320g

$135.00
Whether you're going for style, protection, or a little of both, our Trail Pants are sure to be your go-to riding pant. We made them from a woven version of our lightweight and ultra-breathable VaporRize fabrics. As a result, the pants are more than tough enough to take repeated spills while you're finding your line (or losing it), without sacrificing anything to comfort. And to further this concept, they also include laser-perforated venting that's just as effective at dumping excess heat as mesh, only it doesn't create a weakness in the overall strength of the pants. In essence, this means that you won't find yourself blowing them out for a long time to come. In terms of fit, you'll find that these pants are plenty baggy enough to layer pads, but form-fitting enough to not get in the way.
- Buckle waist adjustments ensure that the fit of the pant is easily customizable and dialed-in, even when your pockets are loaded.
- Deflect UV 50+ protects your skin from harmful ultraviolet rays.
- Designed to retain a loose and open rider-first fit while using pads and armor.
- Fabric Content: MAIN FABRIC: 90% Nylon, 10% Elastane; OTHER: 82% Nylon, 18% Spandex
- Laser-perforated venting adds sophisticated points of ventilation that don't detract from the durability or performance of the shorts.
- Tapered leg helps to prevent anything getting caught in the chain.
- Three zippered pockets provide ample, secure room to store everything that you need while you're out riding.
- VaporRize woven fabrics are treated to be water-repellant, while remaining durable, stretchy, and lightweight for peace of mind on the mountain.

$180.00
The Women’s ADV SWAT™ Bib Shorts feature a drop-tail construction for hassle-free nature breaks and our anatomically evolved 3X Chamois with REPOC construction for all-day endurance with reduced pressure. SWAT™ integrated storage provides generous side-leg cargo pockets built with soft mesh stretch fabric to keep belongings accessible and secure.
- Compressive four-way stretch fabric provides ample comfort and a soft hand against the skin.
- Drop Tail construction at the lower back eases entry and exit for nature breaks.
- Soft mesh bib uppers with binding provide a comfortable hold and keep your gear secure with three patented hanging SWAT™ pockets.
- Large side leg pockets are made from soft mesh to prevent over-heating at your legs, while providing ample room to carry cargo.
- Silicone-infused fabric cuff provides a gentle, secure hold on the legs in order to ensure the perfect, shift-free fit.
- Articulated design ensures the perfect fit while in the riding position.
- Reflective elements increase your visibility to motorists in low-light conditions.
- UPF 50+ rating protects your skin from harmful ultraviolet rays.
- Triple-density-foam Performance Body Geometry Contour Chamois is pre-molded to match the shape of the body for exceptional comfort.
- Slim Fit feels like a second skin.
- 8" inseam (size Medium)
- Fabric Content: BODY: 68% Nylon, 32% Elastane, UPPER: 100% Polyester, POCKETS: 77% Nylon, 23% Spandex

$220.00
Exploration is all about getting farther off the beaten path—and sometimes that path leads to some chilly temps. With the RBX Adventure Thermal Bib Knicker w/ SWAT, you'll stay plenty warm and still have everything you need on your adventure within easy, comfortable reach—all without having to resort to a sweaty backpack or overloaded pockets bouncing around.
- 18" inseam (size Medium)
- Fabric Content: MAIN: 57% Polyamide, 28% Polyester, 15% Elastane; UPPER: 85% Polyester, 15% Elastane
- Side leg pockets with secure zipper provide ample room to carry cargo.
- Soft mesh bib uppers with binding provide a comfortable hold and keep your gear - secure with three patented hanging SWAT pockets.

$60.00
You might say that you love your pack, but the massive sweat stain on your back says otherwise. It's time that you carry your trail essentials in the most logical manner possible—carry them with our Mountain Liner Bib Shorts with SWAT.
With them, we were able to create a patent-pending design that houses five integrated SWAT pockets on the shorts themselves. The pockets sit flush against the body, and they're shaped and structured to ensure that their contents won't ever come bouncing out. Additionally, the pockets vary in size and location, which means that you'll always have a perfectly shaped pocket for your big and small items, alike.
As for the shorts, we designed them to stand on their own, not literally, but in the sense that you'd love wearing them with or without the nifty pockets. To do so, we made them from our beyond lightweight VaporRize mesh fabrics for the utmost in comfort and breathability, while the 9.5-inch inseam (size Medium) plays nicely with shorts when you're layering.
- VaporRize mesh fabrics are extremely cool, comfortable, and lightweight, while creating a dual benefit of being highly effective at moisture wicking and evaporation.
- Patented & integrated SWAT pockets house all of your trail essentials, putting everything you need right where you want it. We also included a secure zipper back pocket and two side leg pockets on this bib short for the ultimate amount of cargo space.
- 3D Chamois is pre-molded to match the shape of the body for exceptional comfort.
- 8" inseam (size Medium).
- Fabric Content: BODY: 88% Polyester, 12% Elastane, UPPER: 100% Polyester

$90.00
When it comes to choosing the perfect pair of bib shorts, comfort is everything. And for anyone whose rides demand premium materials, superior fit, and cutting-edge technologies, the new Women's RBX bib shorts are sure to be your jam.
We designed an open suspender fit and bib construction that's engineered to keep the shorts up and in-place without constricting the upper body. The stretchy elastic suspenders are uber plush and soft against the skin and accommodate taller torso lengths with ease. A non-stretch, sail cloth center back panel is laser-cut for breathability and anchors the back of the shorts for added stability. Silicone-infused fabric cuffs, meanwhile, provide a gentle, secure hold on the legs in order to ensure the perfect, shift-free fit.
Our new Body Geometry Contour chamois also adds unrivaled comfort by minimizing its total footprint and keeping only what's structurally necessary. This minimizes pressure on nerves and soft tissue, while also maintaining the optimal level of support.
- Four-way stretch fabric provides ample comfort and a soft hand
- HookUp magnetic bib connection at the lower back eases entry and exit for nature breaks
- Silicone-infused fabric cuff provides a gentle, secure hold on the legs in order to ensure the perfect, shift-free fit
- Soft mesh bib uppers with binding provide a comfortable hold
- Articulated design ensures the perfect fit while in the riding position
- Reflective elements increase your visibility to motorists in low-light conditions
- UPF 50+ rating protects your skin from harmful ultraviolet rays.
- Single-density-foam, Women's-specific Body Geometry Contour Chamois is pre-molded to match the shape of the body for exceptional comfort
- Women's-specific Slim Fit with an 8" inseam

$150.00
Cold legs make for bad rides, and bad rides are no fun. Lucky for you, the RBX Comp Thermal Bib Tights keep your legs toasty on chilly days.
And to top off the comfort, we've used our Body Geometry 3D Contour Chamois with a variable density design that places support and padding where you need it, not where you don't.
- Fabric Content: TIGHT: 84% Polyamide, 16% Elastane; UPPER: 75% Polyamide, 25% Elastane
- HookUp magnetic bib connection at the lower back eases entry and exit for nature breaks.
- Made of soft and water-resistant Lombardia fleece, which stretches in two directions for comfort and easy care.

$60.00 - $70.00
When it comes to choosing the perfect cycling shorts, comfort is everything. Whether you're going fast or just cruising, it's important to know that you'll be comfy. For riders who want premium materials, superior fit, and technologies that you won't find anywhere else, the RBX Shorts are the jam. The soft four-way stretch fabric and articulated design ensure a perfect fit, but where the real comfort comes is from our Women's 3D Chamois. It features a pre-molded shape that matches the curve of your saddle, reducing wrinkles and hot spots. Top it off with a super soft top sheet to reduce friction and you're left with all-day comfort.
- Four-way stretch fabric provides ample comfort and a soft hand
- Silicone-infused fabric cuff provides a gentle, secure hold on the legs in order to ensure the perfect, shift-free fit
- Articulated design ensures the perfect fit while in the riding position
- Reflective elements increase your visibility to motorists in low-light conditions
- UPF 50+ rating protects your skin from harmful ultraviolet rays
- Women's-specific 3D Chamois is pre-molded to match the shape of the female body for superlative comfort
- Women's-specific Slim Fit with an 8" inseam (size Medium)

$180.00
There's quite a few boxes that your favorite pair of bib shorts must check. The chamois has to be perfect—soft to touch, foam in all the right places, and perfect shape. And the materials must be compressive, yet still comfortable while being sized correctly. It's been a lengthy process, but we're happy to say that the SL Race Bib Shorts check all the right boxes. The pre-molded, triple-density foam Body Geometry Contour 3D Chamois is contoured to perfectly match the curvature of your body, all while being soft and supportive in all the right places. The other part of the comfort equation is the extremely stretchy, soft bib straps paired with a soft four-way stretch fabric. On the performance side, the same four-way stretch fabric also features plenty of compression for long days in the saddle. The three-inch-tall silicone cuff also ensures that your bibs stay in place in a variety of conditions.
- Compressive four-way stretch fabric provides ample leg support, comfort, and a soft hand
- The open suspender construction is designed to keep the bibs in place without constricting the upper body. Stretchy elastic suspenders are extremely plush and soft against the skin and they accommodate taller torso lengths with ease
- HookUp magnetic bib connection at the lower back eases entry and exit for nature breaks
- Silicone-infused fabric cuff provides a gentle, secure hold on the legs in order to ensure the perfect, shift-free fit
- Articulated design ensures the perfect fit while in the riding position
- Reflective elements increase your visibility to motorists in low-light conditions
- UPF 50+ rating protects your skin from harmful ultraviolet rays
- Triple-density-foam, Women’s-specific Performance Body Geometry Contour 3D Chamois is pre-molded to match the shape of the body for exceptional comfort
- Women's-specific Slim Fit with an 8" inseam (size Medium)

$100.00 - $105.00
• Liv Relaxed fit
• Lightweight, stretchable and durable fabric
• TransTextura™ liner wicks moisture and dries quickly
• Adjustable waist
• 12” inseam
• Removable chamois liner

$220.00
Innovative evolution
The Free Aero RC Bibshort is our top race short, which also means that it's insanely comfortable even if you never pin on a number.
It's fair to say that we've been working on this short for the past 15 years. That's how long it's been since the original free aero race bibshort was first introduced, initially as our top-of-the-line race short. Since then it has won three Tours de France, three Gri d'Italia, one Vuelta, and San Remo, but it also became the best-selling product in the history of Castelli because, simply put, this is the short that does everything well.
The concept is quite simple: start with the best pad we know how to make, surround it with a supportive short with good muscle compression, and then remove everything else that's not absolutely necessary.
You feel free thanks to the reduced number of panels and the reduced number of seams. In fact, the short portion has just 5 panels compared to 10 in the previous generation.
You feel free because of further refinements to the Progetto X2 air seamless seat pad. The two densities of foam plus the gel pads provide progressive damping, while the separate skincare layer is soft and stretchy to move with your skin.
You feel free thanks to the most minimal bibs you've ever seen in a short, including open-weave straps for maximum airflow. But we reinforced the yoke so the straps stay in place and made the mesh back narrow for coverage that is minimal yet just enough to hold the shorts in place. And the bib elegantly frames a convenient pocket at the center back.
You feel free because this is the first high-end short that doesn't need any sort of gripper or elastic at the end of the leg to keep the leg in place. Getting this right meant 28 prototypes and our most extensive test program ever, and it results in the most comfortable leg ending we've ever made.
The Forza 2 fabric has 32% lycra with a high modulus for exceptional muscle support and just the right amount of compression. There's reflective piping on the back. And all logos are either stitched or embossed for durability.
- High-compression 215g Forza 2 fabric with 32% lycra content provides exceptional muscle support and compression
- Progetto X2 air seamless seat pad is soft against the skin but well padded for long-distance comfort
- Minimalist bib straps allow maximum airflow, while a reinforced yoke keeps the straps flat over the shoulders
- Rear mesh pocket
- 5-panel construction for reduced seams and less chafing
- Sublimation-printed graphic and logos that will never peel, crack, or fade
- Reflective piping on back of legs
- Soft waistband with raw-cut edge panels for extra stretch and comfort
- Raw-cut leg ending engineered to stay put without silicone grippers

$279.99
This short is the result of decades spent working to make long hours in the saddle ever more comfortable. The fabric is our high-stretch Forza fabric. The 38% Lycra content means that it’s gently compressive while never binding. And it maintains an insanely soft hand. The nearly seamless construction is derived from our Body Paint shorts, which debuted a decade ago and started the trend of reduced seams while maintaining remarkable fit. Nothing to rub or break. The renowned Progetto X2 Air Seamless seat pad gets an update in this season with a new skin care layer that features a remarkably soft new surface fabric and more stretch, which allows us to eliminate the front triangle. We also obsessed over every other little detail, like the new bib construction and even new silicone logos that stretch with the base fabric and recall the logo location of the first Castelli Aero Short from the late ’70s, the short that started it all.
- Forza fabric with 38% Lycra content for a perfect fit
- Dual-layer lumbar support band keeps shorts locked in place around waist
- Reduced seaming for more comfort
- Raw-edge leg ending with vertical silicone grippers
- Mesh back with bonded 2-layer bib straps
- Silicone Castelli logos
- Progetto X2 Air Seamless seat pad
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