... on bottom, anit-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 ... printing on the bottom, anit-slip and durable. Flat lock stitchingCan print with you logo and OEM is ...