Design: Leather Working Group Gold-rated waterproof nubuck leather upper keeps the feet dry in wet conditions GORE-TEX footwear fabric with recycled textile provides reliable waterproof protection Designed to provide protective cushion while maintaining a responsive toe-off for when you want to go faster Recycled yarn meshes Metal speed hooks Abrasion resistant rubber toe cap Achilles heel comfort build for added support Recycled mesh collar and tongue lining Swallowtail(TM) heel design increases stability In-Shoe Comfort: GTX Invisible Fit with recycled content for improved comfort and breathability Lightweight 30% sugarcane EVA midsole for all-day comfort and support Soybean-based sockliner Durability & Traction: Vibram(R) Megagrip rubber outsole with 5mm lugs provides reliable grip on variable terrain HUBBLE(R) heel provides extensive ground contact for a smoother, more stable cruise over any terrain Additional Details: Best for day hikes Weight: 14.7 oz. / 416g (Size 8) Stack Height: 37mm / 27mm The American Podiatric Medical Association (APMA) Seal of Acceptance recognizes products that have been found beneficial to foot health. To earn the Seal, each product is reviewed by a group of APMA podiatrists to ensure it promotes foot health.