Reference: 376635 Big winter protection gets a new level of fit and performance with X ULTRA WINTER CS. Combining a light, supportive Advanced Chassis midsole with full waterproof protection and Thinsulate, it keeps feet warm and dry as the aggressive outsole delivers total confidence for charging through wet, snowy and icy conditions. Technologies outsole Non marking Winter Contagrip® midsole injected EVA molded shank chassis Advanced Chassis™ membrane Thinsulate™ ClimaSalomon Waterproof protection Protective rubber toe cap Protective rubber heel cap Mud guard sockliner EVA shaped footbed OrthoLite® upper construction Heel foam Insulation Temperature Insulated membrane T° Extreme -25°C/-13°F Insulated membrane T° Limit -12°C/+10°F Insulated membrane T° Comfort -6°C/+21°F Fit management Heel Strap Lace Locker upper material Full leather upper Waterproof Nubuck leather Benefits Weather protection Full waterproof bootie. lightweight warmth Light Thinsulate™ insulation for winter comfort. Aggressive Grip Ice grip compound and aggressive lug design.