Our Mens Original Bigfoot Kolax Ankle Slipper Socks in Navy Blue are sure to keep your feet warm on even the coldest days. Non-slip grippers on the sole of each of these thermal socks keep you steady when walking on polished wood or floor tiles. Whether you need an extra bit of warmth or a spot of indulgent comfort, these 2.3 TOG rated slipper socks are perfect for those cosy moments lounging around at home.  Size: UK 12-14, EUR 46-50, US 13-15 Length: Ankle length socks Additional Features: Non-slip grippers Fibre Composition: 91% Acrylic, 5% Nylon, 3% Polyester, 1% Elastane Machine Washable at 40°C. Heat Holders can be tumble dried but are happiest when line dried. Mens Original Bigfoot Kolax Ankle Slipper Socks - Navy Blue