The most technically advanced offering in the Trango line, the new Trango Cube GTX Women's mountaineering boot offers cutting-edge seamless technology with an ultralight sole/midsole package. a Ideal terrain: Technical mixed climbing, ice climbing a New seamless, waterproof upper with protective rand and direct-inject lacing system for maximum abrasion resistance and reduced weight a An integrated removable tongue made from a soft stretch fabric provides maximum comfort a La Sportiva "One" sole by VibramA(R) has a lower profile for a lower overall weight.