The Taiss Light Mid GTX Mountaineering Boot is a lighter mountaineering boot from Mammut , which still provide us with reliable protection against any conditions no matter if we climb rocks ice or snow. GORE-TEX Performance Comfort provides durable waterproof protection as well as excellent breathability allowing you to climb uphill. The upper is made of elastic breathable softshell material from Schoeller and Mammut's Georganic 3D technology precisely follows the shape of your foot. Underfoot, the Taiss features a Vibram Ascension Litebase outsole providing reliable grip on various surfaces including compatibility with cats.