Superleggera Castelli men's bib shorts

We’ve been trying to push the envelope on lightweight shorts since 2011, but we’re running into the limitations of reducing strength for the sake of ever-lighter weight. So we had to step back and find a better solution. We looked at the boxes a short should tick: hold the chamois securely in place, while adding as little weight or fabric as possible (without being see-through, of course), and it should endure a tough season. So we designed a completely new fabric that’s woven rather than knitted, which shaves 30% off the weight while maintaining the same level of support and non-see-through. We then worked with the world’s largest fabric manufacturer to construct a fabric that tapers down the length of the leg, with the last section weighing just 90gsm compared to a regular short fabric, which weighs around 220gsm. This fabric, whilst being incredibly lightweight, still maintains a decent level of durability with excellent abrasion resistance, especially against the saddle. We don't guarantee its resistance to unexpected slides on tarmac, so please keep the rubber side down! Note that while the shorts save 48 grams when dry, this means they also absorb around 30% less moisture when you sweat. So when you're sweating on Alpe d'Huez, you're saving almost 150 grams. These shorts don't compromise on comfort. They feature our premium Progetto X2 Air Seamless chamois, the incredible banded mesh bibs of the Free Aero Race 4 shorts and a flat, stretch-woven leg gripper to keep everything in place.

Technical specifications