Winter wetsuit booties made from stretchy, 5mm 85% Yulex natural rubber/15% synthetic rubber by polymer content, with a full-foot design for increased warmth. Solution-dyed 95% polyester (51% recycled)/5% spandex thermal microgrid interior lining dries fast and offers excellent warmth and flex. 100% external seam sealing; all seams are triple-glued, blindstitched and 100% internally taped. Round-toe design for maximum warmth; diamond-grip, nonmarking soles provide increased traction. Y-strap closure conforms to foot for a snug fit; microgasket at cuff opening prevents water entry. Best for water temperatures: 38 ???"48 ? F/3 ???"9 ? C. Fair Trade Certified??? sewn.