Our best shoe for a water and sun based lifestyle. Ultra-fine ripstop mesh breathes deeply while keeping debris out. Our level footbed, wider toe-box and sticky GA(R) Rubber outsoles promote ninja-like performance in slippery places.DetailsIntended Use: SUP, Training, Sailing, Fishing. Not recommended for heavy whitewater use. Uppers: Ultra-fine ripstop mesh, with TPU reinforcements to guard against abrasion. Sock-like entry with laces for security. Midsole: Drop-in, 7mm thick 45 C closed cell EVA Foam with massage pods. Outsole: Flex-Grip(TM) is non-marking, draining, super flexible, razor siped, and has 3 mm lugs. Made with G.15(TM); our sticky, high abrasion compound. Foot to Ground Distance: 12mm heel, 11mm ball Fit: True to size (For half size, size up) Sizes: M's US Sizing 8-14 (Whole Sizes Only) Weight/Shoe (size 9US): 190g (6.7oz.)