Castelli Superleggera

Since 2011, Castelli has pushed the boundaries of lightweight construction in bib shorts, but has encountered limits in durability. Castelli had to take a step back and find a better way. They analyzed what truly matters: the shorts must securely hold the seat pad in place while using as little fabric as possible (thus minimizing weight), but of course, without becoming transparent. They must withstand at least a full season of tough (race) use. Therefore, Castelli developed an entirely new material, a fabric that saves 30% in weight compared to knitted fabrics, while providing the same support and opacity. Then, Castelli collaborated with the world’s leading factory to create a gradient fabric that becomes lighter as the length of the leg increases, with the last part weighing only 90 g/m² compared to normal short fabric, which weighs about 220 g/m². This fabric is incredibly lightweight but maintains adequate durability and excellent abrasion resistance, at least against the saddle. Castelli does not guarantee against unintended sliding on asphalt. Note that while the shorts save only 48 grams when dry, they also absorb about 30% less moisture when sweating. So, if you sweat your way up Alpe d'Huez, you could save up to 150 grams. These shorts make no compromises on comfort. They feature the top Progetto X2 Air Seamless seat pad, the spectacularly striped mesh bibs from the Free Aero Race 4 Bibshort, and a flat, elastic woven leg gripper to keep everything in place. Highlights include: elastic gradient material, up to 50% lighter with improved durability, minimalist bib construction made of mesh material strips, integrated leg grippers with external Lycra®, pressed logos, heat transfer applied scorpion logo, Progetto X2 Air Seamless seat pad.