Astral's version of the classic boat-shoe is built with modern materials and design for high performance. The Porter provides amazing grip on deck, an active heel lock, water drainage, and ventilation. Its hydrophobic canvas uppers dry fast and endure years of sun and saltwater.detailsIntended Use: Boat, Water, Casual, TravelUppers: Hydrophobic Canvas with 2 mm Airmesh at tongue and vamp for ventilation. Slit at heel for debris drainage. 210D nylon liner, water resistant shoelaces.Midsole: 53C closed cell EVA foam with drainage ports at forefoot.Outsole: G.15 high friction G Rubber compound with razor-siping and maximum surface contact, ideal for boats.Foot to Ground Distance: 17mm heel, 16 mm ball.Weight/shoe: 217g (7.65 oz)Sizes: Men's US 7-13Fit: True to size (Up to D width)