We initially developed our Nano Flex tights to help you get through the occasional rainy day of training. But you asked for more, so here it is: the extreme-duty Nano Flex bibtight. By putting an extra layer over the thighs, knees and bum we're able to significantly increase the rain protection while also blocking a bit more wind. We've made the lower inner leg completely waterproof, since this was usually the first area to soak through with our Nano Flex tights.

• Nano Flex fabric gives outstanding warmth and stretch with water resistance
• Minimal seams for maximum water resistance
• KISS Air seat pad for all-day comfort
• Mesh bib straps for breathability
• Reflective screen-printed Castelli graphic on both legs

Occasionally, without notice, manufacturers change product design and/or specifications.