From the manufacturer

ColdGear Infrared Halftime Ribbed Beanie

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.

• Chunky ribbed acrylic knit fabric is super-soft & delivers all-day comfort & warmth
• Material wicks sweat & dries really fast
• One Size Fits Most
• Traditional cuff beanie fit