UA RUSH™ is infrared technology that reflects your body's energy to help you work harder & recover faster Super-soft ColdGear® fabric is breathable & stretches for superior mobility but is still incredibly warm Mock neck construction for added coverage with front zipper for easy on/off Built-in thumbholes help keep your sleeves in place for added warmth Raglan sleeves - Style #: 1365724 Powered by Celliant 84% Polyester/16% Elastane Imported - Wash garment inside out Machine wash cold with like colors Use only non-chlorine bleach when needed Tumble dry low Do not iron Do not use softeners Do not dry clean