made of 2.0mm warm, lightweight, stretchable neoprene, good fit with most boots.Dot printing on ... slip and durable Item YKSK004Description 2.0MM flat-lock neoprene socks for beach &surfingMaterial Neoprene, NylonSize S, M, L, XLFeatureMade of warm ... , lightweight,stretchable, highly water resistant of 2.0mm neoprene. Good ...