These are an essential part of my winter cycling kit. Before these, I wore either knee warmers or leg warmers, neither of which provide coverage to the upper thigh or groin area. These tights do NOT have a chamois in them. I prefer that because I can wear these a few times over regular PI cycling shorts without the need to wash these tights (I do wash my shorts after every ride though). These tights provide good wind protection and have thermafleece for warmth. Speaking of thermafleece, though it's thinner than PI's Gavia tights, I find that when riding in temperatures above 60F, these tights become too warm. You're better off with knee warmers for 60F+ temps.