For maximum comfort on the slopes: Stretch material eliminates restrictions on movement. Equipped with Thinsulate and Heat Navi, which converts light into heat. The fabric is Toray's DERMIZAX, which is not only water-resistant but also highly breathable. Ventilation at multiple locations and Descente's unique Breathable System allow for easy venting and temperature control inside the jacket. Back pockets offer roomy storage and a powder skirt prevents snow entry. Equipped with all necessary functional features for skiers. Insulated ski jacket. S.I.O is a technology to use minimum pattern cutting means fewer parts, fewer seams, better waterproofing, greater freedom of movement. HEAT NAVI® This proprietary technology developed by Descente converts infrared rays from sunlight into stored heat, even in adverse conditions. BREATHING SYSTEM : D-Laser cutting with metal mesh backing allows air to move more easily resulting in reduced moisture build up around the neck and chin area. Dermizax™ uses nonporous lamination technology to achieve excellent waterproofness and moisture permeability without compromising the soft feel of the fabric. 3M™ THINSULATE™ INSULATION The original warmth-without-bulk insulation, 3M™ Thinsulate™ Insulation is the brand trusted for warmth. This highly breathable, lightweight, durable insulation contains unique fiber constructions up to 10x smaller than other synthetic insulations. Tailored Fit Waterproofing 20K Breathabilty 20K Insulation 100g Quick Wrist Adjusters Lycra Cuffs Back Pocket Breath Ventilation IC Pocket GogglesPocket / Powder Skirt