The day started balmy and bright, but there's inclement weather ahead. This may pose as a threat to some kits, but Castelli's Tutto Nano Bib Knickers excel when conditions are variable. They offer the perfect in-between coverage with knicker length, plus the new Nano Flex 3G fabric that traps in warmth that's soft against the skin, but light enough to breathe, so you don't have to overheat. And for those intermittent showers, Nano Flex 3G also packs in exceptional water protection to shed rain, mud, and wheel spray. On upper side, the knickers feature a light mesh bib that doesn't hold onto sweat, aiming to keep you cool while you hammer out the miles. Castelli employs the KISS Air2 chamois on the Tutto Nano. This multi-density chamois is crafted with long miles in mind, and is contoured to offer elevated support to the ischial bones, while alleviating pressure to the perineum, reducing irritation from jarring road vibrations, and long hours in the saddle. The knickers are finished off with reflective inserts on the bottom hems to help boost low light visibility, and embossed logos that withstand the rigorous conditions of the road.