All the warmth that Heat Holders wearers expect, but in a shorter length, and with a practical slip-resistant tread, our men's fit SOCKSHOP Slipper Heat Holders Thermal Ankle Slipper Socks are just the things to keep feet cosy while lounging about the house. The inner pile of these thick Heat Holders socks is intensely brushed, creating a soft, long fleece that retains and maximises heat in the fibres and keeps you wonderfully warm all evening long.