The Lucy jacket features Descente's Heatflex 40 Light and Heat Navi insulation to retain your body's heat. Along with Motion 3D technology, the Lucy will keep you warm and moving.Fabric - REGULAR New Glamour TwillInsulation - Heatflex 40 Light, Heat NaviWaterproof - DT 20,000MMDescente Technology - Motion 3D FitPowder SkirtPit ZipsWrist/ Waist/Hood AdjusterRemoveable HoodLycra Cuffs