Mammut's Trovat Guide II High GTX; is a seriously durable and extremely comfortable mountain hiking boot, made with a textile upper surrounded by a full rubber rand to help deflect scree and protect from boulder scrapes. A GORE-TEX; Performance Comfort membrane lining provides full waterproof protection whilst allowing perspiration to pass out of the boot, helping to maintain temperature and keep your feet dry__ Designed with their patented Base Fit; 2.0 heel strap system and Motion Control; design, you're guaranteed a snug fit around the laces and heel that holds your foot in the optimum walking position and prevents it from slipping or twisting.The use of Memory Foam provides comfort around your instep, shin and ankles, and the Foot Mapping System zones each area of the boot to give your feet cooling/padding/warmth/slip or non-slip linings as required ... More info