These super warm Heat Holders Ladies\' Thermal Tights are made from an advanced insulating yarn, with a soft-brushed inner pile that maximises the amount of warm air held close to the skin to keep you cosy.They have 0.52 TOG thermal ability and built-in stretch, with an elasticated waistband and a comfort gusset panel, for an improved fit and added comfort for all-day wear.91% polyester, 9% elastane1 Pair pack140 DenierComfort gusset for improved fitMachine washable at 40°