218499 Features: Protect your feet from wet conditions with a combination of breathable, waterproof GORE-TEX and Dri-Lex Bristol built into a soft nylon liner Your feet are safe from abrasion with the nubuck leather and recycled nylon mesh uppers that are reinforced with Uretech Cushion each footfall with the Dual-density ECO Trailon and EVA midsole with a stiff TPU shank to support your arch Get excellent purchase on any terrain with the Vibram River sole that has a built-in Impact Brake System to prevent sliding when you're moving downhill Specifications: Weight per pair: 2 lb 10 oz Upper: nubuck leather to 100% recycled nylon mesh to polyurethane Midsole: EVA to TPU (shank) to synthetic Outsole: Vibram rubberSpecifications based on Men's size 9