ColdGear(R) Infrared technology holds in body heat, without adding weight or bulk. It's a special, soft print on the inside and it keeps you warmer, longer, so you can work out in the bitter cold. Fit & Design: Durable, bonded 3-layer softshell material has a quiet outer layer & superior stretch Windproof materials shield you from the elements 4-way stretch material moves better in every direction Secure, zip hand pockets & chest pocket Drawcord adjust on bottom hem for a secure, custom fit Uses a fluorine-free water repellent treatment & odor control technology minimizes odor Technology: UA Storm technology repels water without sacrificing breathability ColdGear(R) Infrared lining uses a soft, thermo-conductive coating to absorb & retain your body heat