Cosyfeet extra roomy softhold warm ribbed knee highs 80 denier these are the warmest knee highs in our range theyre knitted from supplex a clever fibre that keeps legs warm but still lets skin breathe ideal for swollen legs theyre made with much more room in the foot and leg parts so theyre roomier throughout giving you an exceptionally generous and comfy fit they feature our exclusive softhold top that gently holds them in place without digging in or restricting your circulation