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. And because these tights are going to see heavier use, we've also upgraded the seat pad to the Progetto X2 Air, so you're ready for long rides with a high probability of rain.