Loyak(TM) is a minimalist, high performance shoe providing durability, exceptional grip, and sensational ground feel on land and water. Intended Use: Water, Casual, Boat, Travel Uppers: Quick dry canvas with 3D airmesh // Water resistant laces Midsole: Removable, 45C closed cell EVA foam // Zero drop, Level FootbedA(R) from heel to ball // Minimal arch Outsole: Flex Grip(TM) outsole made with non-marking, razor siped, G.15 Rubber(TM) Foot to Ground Distance: 11mm Weight/shoe: 209 g / 7.4 oz (M&';s size 9) Sizes: M&';s US 8 - 14 (whole sizes only) Fit: True to size (size down for half size)