Bedrock&';s best-seller, the Cairn Evo 3D PRO is the ultimate adventure sandal. Extra-sticky VibramA(R) Megagrip rubber paired with patented adjustment system locks feet in from heel to toe for a fit that won&&';;t fail in the frothiest rapids or thickest silt. G-hook-and-loop heel strap system creates an extra secure foothold that won&&';;t gum up in mud or pull off in whitewater. Improved 3D footbed is zero-drop anatomically molded with tasteful arch and a refined toe-triangle for support. Built for those seeking extra support or looking to log big miles. The footbed is firm, durable, and may require some break-in time. Upper: Premium polyester and nylon webbing Outsole: Ultra grippy VibramA(R) Megagrip rubber compound Strap System: Bedrock&';s Patented Y-Strap 3 point adjustment system with Whitewater grade Heel-Hook strap Weight: 8.8 oz per size 9 sandal Stackheight: 16mm stack height, zero drop Underfoot: Firm + Durable 3D Molded EVA foam footbed Manufactured: US Assembled of Foreign Parts