DryRun Neoprene and Rubber - Men’s Ankle and Shoe. Uppers are made of genuine neoprene and rubber. 100% waterproof neoprene-bootie construction with breathable Airmesh lining. Storm-proof natural-rubber shell with protective toe and heel reinforcements. Dureva™ outsole - ultra lightweight and durable with grippy Starliner tread. Premium fully-moulded removable PU sockliner for all-day comfort and durability. Built on a sneaker platform for speed and agility. Contoured internal nylon shank for added arch support. Easy on/off convenience with 4-way stretch topline openings. Fully buoyant even when completely submerged. Quick clean-up with soap and water. Fits standard athletic shoe sizes - best to fit with a thin running shoe ankle-height or no-show sock. Fishooz DryRun Splotch/Blue Shoes DRS-MS-SPL-M