I wondered about these. I have the lower end Power 2.0 (I think that's the model) knickers and LOVE them (the chamois feels weird and stiff off the bike, but great on). Just wore them for the Tour de Tahoe ride on Sunday. I also am a fan of the Oxygen shorts--best short I've ever worn. I don't *get* the Oxygen knicker...if it's cold enough to need wind-blockers I don't want my shins exposed.