These are so comfortable and work wonders when I'm teaching or taking classes that I prefer to do barefoot (barre, pilates) when the weather is cold or at that in-between stage where I want to wear capris but it's just so cold!  They ALSO work great when you go to a gym that is OVER-AIRCONDITIONED in the summertime.  I get cold easily, even when I'm moving.  These leg warmers keep me comfy!