Part of their light hiking range, Mammut's Mercury Mid III GTX Hiking Boot provides great all-round protection in changeable weather conditions.They have a durable and stable upper which is constructed from a blend of terracare nubuck leather* and softshell fabrics, built around a waterproof and breathable GOTE-TEX membrane.360 Memo Foam in the lining and footbed moulds to the shape of your foot and helps keeps you comfortable, while the smooth-running Polyamide (PA) webbing laces ensure they are easy to put on and take off.The board lasted vibram Frog Grip outsole has been designed with hexagonal studs to ensure excellent grip, working alongside their patented Rolling Concept sole to encourage a natural rolling movement and reduce fatigue.Liquid Rubber reinforcments protect against abrasion and damageBoard lasting Last index: HikingFlex index: A5Weight (UK 8.5): 540g*Sustainably produced in Germany, terracare leather is made with minimal use of water, electricity from renewable energy sources and state-of-the-art production methods.