Merino wool is soft, breathable, inherently warm and has natural moisture management. Turtle Fur's premium grade Merino wool is blended with acrylic for the perfect mix of comfort and itch-free warmth. These are the perfect winter hats for active people.Size: Adult, One Size fits most. Also fits Juniors and TeensMidweight Knit Merino Wool Blend with Earband Micro Fleece LiningPerfect for Skiing, Snowboarding, Snowshoeing, Hiking & Camping, and an Active Lifestyle.Regular Fit50% Merino Wool/50% Acrylic