One of three new boots designed around Montrail's new Integrated Climbing Equipment system. The Lotus nylon and carbon fiber midsole is flexible, but when either I.C.E. 9 crampons (taylored for hard-core frontointing) or Khumbu crampons (lighter weight for general mountaineering) are affixed, the Lotus boot gains rigidity. Ankle-high nylon upper is padded and reinforced. Gore-Tex liner. Stretch tongue has gusset construction. Thermoplastic toe and heel counters. Rubber toe cap.