Under Armour Men's Storm Sonar Waterproof Jacket 100% Other Fibers Imported Arm our storm fabrication is 100% Waterproof and Breathable, with fully taped seams 5K/5K Rating Primaloft insulation is lightweight, water-resistant, Breathable, and can be compressed without losing warmth Strategic insulation (40g body/60g seat and knees) to give you extra warmth where you need it Cold gear infrared uses a soft, thermo-conductive inner Coating to absorb and retain your own body heat