- Size: One size • Elastic knit hat that fits most people, providing warmth and comfort. • Warm fleece lining that offers excellent insulation, ideal for temperatures down to -10 ℃. • Perfect for outdoor training on cold days, suitable for running, skiing, and cycling. • Stylish and classic design, ideal as a gift for family and friends. • High-quality finish with no loose seams, machine washable without deformation. • Lightweight and thin fabric that feels comfortable and does not generate static electricity.