Smooth, lightweight fabric is breathable and comfortable Omni-Wick™ technology absorbs sweat and moisture to keep you dry Omni-Freeze ZERO™ technology features blue rings that react with your sweat to lower the temperature of the fabric, so that you feel cool Neutralizes odour to keep you fresh Material composition: 100% Polyester Size shown: Medium | Model height: 180cm More Info Sport: Outdoor Product code: CL1990541-039 Columbia Men's Alpine Chill Zero Shirt