Rooster Hot Socks – a revolution in warmth – a 0.5mm titanium layer that is both comfortable and warm. Wear them under your normal sailing boots for extra warmth – remember layers are better than thickness! Titanium neoprene acts in a similar way to a survival blanket, the titanium impregnated reflective layer is sandwiched between the neoprene and the interior nylon lining, this lining reflects radiated heat back to the body.FeaturesThin neoprene socks with 0.5mm Titanium impregnated reflective layerSailing Survival Blanket Provide additional warmth by reflecting heat back to the bodyLayer up with PolyPro SocksWashing InstructionsWe recommend hand washing in warm soapy water and allowing to air dry.SizingTo use the size chart, select your shoe size and find the corresponding sock size. The material exhibits some stretch and a single sock size will span a number of shoe sizes.Hot SocksEU Shoe SizeUK Shoe SizeXXXS341XXS352363XS374