We use cookies to improve your experience on our website and to show you personalised content.
You can read our Cookie and Privacy policy or manage them individually.
You can read our Cookie and Privacy policy or manage them individually.
Description
Castelli's top performance short offering, the Castelli Free Aero Race 4 Kit Bib Short is the 4th generation of this model and the most comfortable and aerodynamic yet. The pro-level Progetto X² Air Seamless seat pad has a two-layer construction; a soft skin-care layer that'll move with your body as you pedal, and a padded cushioning layer to damp shock. It's effect on the longest rides and races, allowing you to focus fully on your performance. Forza fabric has been utilised for the inner leg to ensure a perfect, close-to-body fit that won't restrict movement, and on the rest of the legs, Vortex dimpled material smooths the air for drag reduction. In the front of the short, the Doppio V construction adds extra support and the short is held in place by Giro4 leg grippers. Minimalist bibs keep weight low and the striped mesh is hardly noticeable once in place under your jersey.
Delivery & Returns
Reviews
Adjust your Cookie Preferences to Opt-in "YES" to "Functional Cookies".
Q&A
Adjust your Cookie Preferences to Opt-in "YES" to "Functional Cookies".
Oh, dear. You tried too many passwords and now your account has been locked for the next 30 minutes.
Not sure of your password? Reset using the link below.
We've sent you an email to reset your password.
To create your new password, click the link in the email and enter a new one. Didn't receive the email? Check your junk email.
Please enter your registered email address below and we'll send you an email explaining the next step.
Select a store
Select the store you visit most frequently below and their stock information will show on product pages.
Important Update for Our Canadian Customers
We regret to inform you that shopping on Sigma Sports is temporarily unavailable for customers based in Canada.
We understand how disappointing this may be and sincerely apologize for any inconvenience caused. Please rest assured that we are actively exploring solutions to resume service and find the best way to support our Canadian community.
We appreciate your patience and understanding during this time, and we look forward to welcoming you back as soon as possible.
If you require any further assistance, please reach out to the customer services team
— The Sigma Sports Team