Castelli Tutto Nano Bib Tights The Tutto Nano Bib Tight offers Castelli's brilliant Nano Flex 3G fabric in a full leg covering. Stretchy, warm and highly water and wind-resistant, the mechanical repellency of the nanotechnology means that it is longer lasting and more effective than simple chemical DWR treatments and more comfortable than membrane based products. Protection from the elements with Castelli Tutto Nano A great option for colder autumn and winter rides in both dry and wet weather, these Castelli bib tights feature Castelli's Kiss Air2 pad for all day comfort and has 360°...