The Castelli Nanoflex Bibtights walk (ride!) the fine line between water repellency and breathable comfort. The unique Nanoflex material behaves like thermal fabric in dry weather, as it insulates and wicks moisture away from your skin. When it rains, tiny nanofilaments within the fabric cause water droplets to roll off the surface of the material, so you stay drier. The point is that these bibs are not waterproof. They are actually better, because they keep you feeling more comfortable in a range of weather conditions, from dry to soggy. They also feature minimum seams, which minimizes chafing on wet days, and the Kiss 3 chamois pad for all day protection.

• Nanoflex thermal fabric has a silicone nanofilament water-repellent finish that causes water droplets to bounce off the material
• Breathable mesh bib straps
• Giro 3 ankle grippers
• Camlock ankle zippers with reflective tape
• Kiss 3 chamois provides all day comfort with a varying thickness design