FRICTIONLESS: No more tugging, struggling or stretching. Simply slide on your socks and slip on your suit. WETSOX’s frictionless exterior won’t stick to the interior of your wetsuit or boots like other fabrics or bare skin, allowing you to slip in & out of your gear effortlessly. INSULATED: Frictionless Thermals offer three layers of insulation and feature a 1mm neoprene core for comfort in all seasons- adding targeted insulation for your extremities with no need to size up boots.