Made with Thermo Grid fabric, it provides excellent temperature regulation, making it ideal for use as a helmet liner or standalone hat. The brushed back fleece feels warm and comfortable next to skin, and the stretch fabric ensures a snug fit. This versatile beanie is perfect for a vast array of outdoor pursuits including hiking and walking.Thermo Grid brushed back fleece with stretchDouble thickness headband Low bulk constructionFabrics: 97% Polyester, 3% Elastane