Features of the Louis Garneau 0 Degree LS-100 Shoe Dual Density crampons: Offer both rigidity and traction and allow for better mud evacuation BOA L4 single rail quick attach system with velcro closure: Quick attach, distributed pressure and ultralight Insulated inner sole for cold protection: Keeps feet warm Thermoplastic toe protection: Provides protection Water-resistant shoe with 3-mm neoprene all seam-sealed: Keeps feet warm and dry Interior of shoe lined. Base of shoe insulated with 4-mm foam and lining coated with waterproof membrane: Provides heat and comfort in cold temperatures Heel reflector: Improves visibility Approximate weight (size 42/1 shoe): 14.5 oz / 406 g Insulated insole Comfort Fit Waterproof