ColdGear Infrared uses a soft, thermo-conductive inner coating to absorb and retain your own body heat .Dual-layer fabric gives you a soft, warm interior and a smooth, fast-drying exterior .4-Way Stretch fabrication allows greater mobility and maintains shape .Material wicks sweat & dries really fast .Full arm coverage .Reflective branding increases visibility .Sold as single sleeve .S/M Length: 15â .L/XL Length: 17â .