ColdGear® 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. FITTED, Dual-layer fabric with an ultra-warm, brushed interior & a smooth, fast-drying exterior ColdGear® Infrared technology uses a soft, thermo-conductive coating to absorb & retain your body heat Material wicks sweat & dries really fast 4-way stretch material moves better in every direction Mock collar for added coverage & protection 87% Polyester/13% Elastane Worn twice, basically new! Unique Grove green [pale green with undertones of very light gray-blue]