Minus33 Merino Wool SB Reversible Beanie 52% Merino Wool, 48% Acrylic Imported SB - What does that stand for? Simply Brilliant, Sweet Beanie, Smart Buy... Try it and let us know. QUALITY CRAFTED BEANIE: One-Size fits most anyone. 52% Merino Wool 48% Acrylic. Soft, warm, and comfortable. Machine washable and dryable. Reversible with solid color option. EXPERIENCED BRAND: Although there are many copy-cats on the market today, Minus33 has been a trusted brand since 2004. IMPORTED: As the legacy of a 100+ year old USA based woolen company, Minus33 knows quality and comfort in Merino Wool. We are committed to bringing you the best Merino Wool products at a reasonable price. TECHNICAL DETAILS: All the details in the world won't make it feel any better than wearing it on your next outdoor adventure. Garment Weight 3.2oz (91 grams). 52% Merino Wool, 48% Acrylic Reversible with solid color option Machine Wash Gentle or hand wash Weight of Hat = 3.2oz