Please click for the La Sportiva Size Conversion. ; A piece of art, state-of-the-art, mountain boot. ; PU-Tech transparent PU-coated embossed Benecke CeraCom PUR leatherette upper. ; Water-repellent Lorica with Antiacqua external coating. ; Vibram XSV rand. ; Molded TPU ankle and backstay reinforcement. ; PE micro-cellular thermal insulating closed cell foam lined with a thermo-reflective aluminum facing coated with an anti-abrasion flocking. ; Micro-perforated, therm-formable PE foam innerboot. ; Water-repellent Lorica with Antiacqua external coating. ; Vibram Montagna outsole plate for durability. ; HP3/Dual-density micropore EVA midsole. ; 5mm Carbon Fiber insole with thermical, structure, and central insert in polyester and aluminum insulation. ; Innovative FLS (Fast Lacing System). ; Integral gaiter collar keeps spindrift and debris out. ; Weighs 5 lbs. 1 oz.