Description of La Sportiva Spantik Built for high-altitude mountaineering, the lightweight La Sportiva Spantik features cutting-edge boot technology. Features: Waterproof outer boot has a closed-cell foam lining with reflective aluminum facing Toasty inner boot sports a minimal outsole plate for durability Unique Fast Lacing System is one-hand adjustable for on-the-move micro-tuning without removing your gloves Internal gaiter keeps out spindrift