Modern Water Bootie | Astral’s better bootie for kayaking offers stability, protection, and insulation without the use of toxic neoprene. G.SS Rubber Flex Grip Outsole | Sticky, durable rubber with a flexible outsole provides exceptional grip on both wet and dry surfaces. Balanced Geometry | A flexible outsole, wider toe box, and Level Footbed’s zero drop offer a barefoot-like feel. Water Ready | Quick-drying canvas upper with drainage ports that reduce the entry of sand or silt, and 3mm quilted airmesh insulates without neoprene. Technical Details | [Intended Use] Water, Boat; [Drop] 0mm; [Stack Height] 11mm; [Weight] 9.8oz; [Shape] Original Shape (Secure Midfoot & Heel, Wide Toebox); [Upper] Canvas, 1060D Ballistic Nylon; [Lining] 3mm Quilted Spacer Mesh; [Midsole] Removable 45C Closed Cell EVA; [Arch] Minimal; [Outsole] Flex Grip, G.SS Rubber