Made from 7mm 85% Yulex® natural rubber/15% synthetic rubber by polymer content with 100% external seam sealing. Best for water temperatures: 32°–38° F/0°–3° C. Fair Trade Certified™ sewn. Black BLK | Style No. 89442 Specs & Features Made with Natural Rubber Stretchy 85% Yulex® natural rubber/15% synthetic rubber by polymer content; the natural rubber is Forest Stewardship Council® certified by the Rainforest Alliance; the synthetic rubber is chlorine-free Warm Thermal Lining Solution-dyed 95% polyester (51% recycled)/5% recycled spandex thermal microgrid interior lining dries fast and offers excellent warmth and flex Solution-Dyed Recycled Polyester and Water-Based Glue Stretchy and durable solution-dyed 88% recycled polyester/12% recycled spandex exterior lining; all fabrics are laminated with solvent-free AquaA™ glue Fully Seam-Sealed 100% external seam sealing; all seams are triple-glued, blindstitched and 100% internally taped Snug and Adjustable Fit Y-strap closure conforms to foot for a snug fit; microgasket at cuff opening prevents water entry Round-Toe Design with Grippy Soles Round-toe design for maximum warmth; diamond-grip, nonmarking soles provide increased traction Supporting the People Who Made This Product Fair Trade Certified™ sewn, which means the people who made it earned a premium for their labor Country of Origin Made in Thailand. Weight 590 g (20.8 oz)