The revolution of trekking shoes The next generation of high-spec light trekking boots with a hybrid of military boots and KEENs cutting-edge technology. Eco-friendly leather with natural anti-odor technology KEEN.DRY KEEN.BELLOWS FLEX KEEN.ALL-TERRAIN Product Details: Product No. 1024921 Weight: 15.3 oz (448 g) KEENs unique waterproof and breathable material provides a comfortable wearing experience and a firm grip on the ground, KEEN all-terrain rubber outsole that is compatible with all directions, 0.2 inch (5 mm) lug pattern improves slip-resistance. Increased flexibility Adopts "KEEN.BELLOWS FLEX" upper with excellent durability. Heel capture system secures the heel and provides a secure fit. Stability shank, abrasion resistant rubber tip improves durability and protection. Made with earth friendly and supple leather upper that is certified by LWG environmental certification organization. Uses PFA-free (organic fluorine compounds that cause environmental pollution). Deodorization treated with special upper. Made from treated premium leather and lightweight breathable performance mesh upper Speed lace webbing system for a snug and comfortable fit Active quick dry lining Removable LUFTCELL PU insole keeps you comfortable without leaving a mark, non-marking design with excellent abrasion resistance and grip Omni-directional lug pattern for added traction, avoid washing and wipe with a damp towel. Shape and dry in ventilated place We also recommend using a dedicated restorative agent or waterproof spray. Leather will last longer when brushed frequently. We recommend using a waterproof spray before putting on the shoes after purchase, as the leather is resistant to water and dirt.