The Castelli Men’s Sorpasso RoS Bibknicker – The main part of the tight is constructed with Nano Flex 3G fabric the third generation of impressive nanotechnology fabric treatment that adds a high level of water repellency without affecting the breathability stretch or warmth of the fabric. You get a highly flexible compressive fit that moves with you focusing on warmth and comfort without making any compromises. To spice things up a few panels of the Nano Flex Xtra Dry fabric were added to provide extra wind protection in the front panel and over the thighs as well as in the back for extra protection from road spray. But it’s not only about the fabrics mdash anatomical patterning gives a bend at the knee and the hip while the seamless bib straps lie flat and securely keep everything in place. Featuring a generously padded Progetto X2 Air seamless seat pad to make long rides more comfortable.