The Castelli Ride-Run Shorts will support you through the tri disciplines, whether youre training or racing, on courses of all distances. Built with special added-comfort touches, they can be clipped to your top to give an aero advantage.

The shorts are built around Castellis special KISS Tri seat pad, which is made with soft yet slender and quick-drying layer of foam to keep you comfortable on the bike, without getting in the way on the swim and run legs.

Constructed using smooth, flat-lock stitching, they feature unrestrictive raw-cut leg endings, with minimalist, integrated silicone grippers to hold the legs in place, and include a small pocket at the back for your gels. 

Last but not least, these shorts have a SnapLock fastener at the waist that will let you join them to the Castelli Free race top for the swim and bike layers, to achieve similar marginal gains to a one-piece suit. Unlike with a speed suit, though, you can unclip them again on the run leg, to encourage much-needed airflow and heat loss.

Key features:

• A tri specific short made for use during any competition or training session
• SnapLock fastener at waist clips jersey in place for swim and bike
• Made with Castellis low-bulk yet comfortable KISS Tri seat pad
• Made using flat lock stitching
• Legs constructed with raw cut endings and internal silicone grip elements
• With pocket at centre back for your nutrition
• Weigh 137g (M)