Drew Brady Women's Alta Headband - Heat Holders Women's Alta thermal headbands are created with high performance thermal yarn and HeatWeaver insulation lining to maximize the amount of warm air held close to your body. Black/Cream Outer: 100% Acrylic Other colors Outer: 53% Polyester, 47% Acrylic Lining: 100% Polyester One Size Fits Most Cable knit Moisture wicking Heat Holders thermal yarn