The Castelli Nano Flex Pro Race Bib-short keeps a cyclist comfortable in wet and dry spring and fall weather. Castelli has spent over a decade developing the Nano Flex 3G fabric, Castelli’s best all-around fabric for winter shorts and tights. Warm, stretchy, and luxuriously soft, its nanotechnology water-repellent finish deters water from getting you wet while simultaneously evaporating sweat. From the outside to the inside, the Nano Flex Pro Race Bib-short will keep you dry. Besides being made with an amazingly soft fabric, minimal seams add to the overall comfort. Furthermore, with less seams there is less space where water can seep into your shorts. Bib-shorts is a little longer for extra warmth and its ending is raw cut so it won’t chafe skin. The raw cut provides a surface with no abrasion. Bibs have been made of mesh for maximum ventilation. Sweat will not get trapped under the bibs and you will stay dry. You’ll barely notice the bibs that are keeping the shorts in place. Castelli’s Progetto X² Air seamless seat pad is Castelli’s best performance minded chamois pad. Soft malleable fabric and just the right amount of perforated padding makes the bib-shorts great for those long rides. A microfiber top layer has a four-way stretch with a seamless construction and a perforated foam backing that circulates air and evaporates moisture. The design offers complete comfort against your skin even on 100+ mile rides. Castelli spent years perfecting the density and location of padding. Pads are thicker under the sit bones and thinner on the sides and under the perineum; perforate viscous padding is added under the highly sensitive seat bones. Try combining the Nano Flex Bib-Shorts with the Castelli Beta RoS Jersey for training in varying weather conditions during the fall and spring.
