The Castelli Nano Flex Pro 2 Bibtight features an all-new fabric - Nano Flex Xtra Dry for the best performing wet-weather non-membraned fabric yet this amazing fabric is also better in dry conditions too. Nano Flex Xtra Dry features an even tighter weave double layer construction combined with an improved water-repellency treatment to really push the boundaries of weatherproof woven fabric. Xtra Dry isn\'t totally waterproof but it is currently the best fabric around for wet weather legwear and the best bit is that it isn\'t compromised in dry weather making these the perfect winter tight. Constructed with water repellency at the forefront the minimal seams are placed in such a way to help the Pro tights remain as watertight as possible. The bum is in a double layered fabric for extra protection as this is in direct line of rear wheel spray. The lower legs incorporate fully waterproof shin guard panels in a highly reflective material. These shrug off road spray and are a valuable safety aid. Wear them over your shoe covers for maximum effectiveness. Given its Pro status, it\'s not surprising to learn that these tights also incorporate the excellent gel padded Progetto X2 Air seat pad. Key Features Nano Flex Xtra Dry fabric brings higher levels of water protection and warmth Double face knit keeps you warmer because less wind comes through Reflective waterproof splash guards on the inside of lower legs Double layer seat protects from rear wheel spray Fewer seams to limit water ingress Lie flat bib construction Progetto X2 Air pad for long days in the saddle Sizes men\'s S-3XL Weight 376g(L) Castelli comfort range 0-12C