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The Sorpasso Bib Knickers begin with Castelli's top-of-the-line Progetto X2 pad, the same pad found in Castelli's best shorts. The top layer that contacts your skin is a made from a seamless, four-way stretch microdenier fabric designed to move in harmony with your body and eliminate the chafing that can come with materials with too little stretch. It receives an antibacterial treatment and is bonded to a variable thickness pad made from multiple density foams; the result is a smoothly contoured pad that places the firmest foam where support is most needed. Perforated inserts help to relieve pressure on the sit bones and perineum -- just where riders experience the greatest pressure.
- Hollow core fibers trap warm air and move moisture better than traditional fibers
- Progetto X2 chamois keeps your nether regions comfortable on long rides
- Mid-calf length keeps your joints and muscles warm so you can get through your whole workout