Astral Men。Astral Men\'s PFD Sandals in Green/Black. Size 11. Excellent preowned condition, gently worn. Awesome summer sandal! Inspired by the needs of class V river guides. The PFD Sandal™ combines the secure and adjustable fit of Astral’s award-winning life jackets with the Balanced Geometry™ and legendary G Rubber™ grip of our world renowned Loyak™ water shoes. A purpose-built Thwart Pad provides comfort while wedging under raft thwarts, and allows the PFD Sandal™ to be cinched tight to run, jump, swim and climb in and around the river. Intended Use: Water, Casual, Boat, Travel Uppers: 100% recycled polyester canvas Midsole: 75C closed cell EVA foam (13 mm thick) Outsole: Flex Grip™ outsole with G.ss Rubber™ Foot to Ground Distance: 16mm Weight/shoe: M9 = 8 oz (227 g) Sizes: Men\'s US 8-14 (whole sizes only) Fit: True to size (for half size, size up)