LANACare Certified-Organic Merino Balaclava, Double-Layer Made of double-layer of soothingly soft KbT, GOTS, IVN Best Certified Organic Merino Wool. Wool absorbs moisture, keeping you dry & comfortable. Even when wet, wool feels warm. Natural fibers breathe to maintain comfortable temperature against skin. Natural wool with lanolin gives self-cleansing properties for easy care. Minimizes need for washing. For best results, wash by hand with lanolin-containing woolwash to retain self-cleansing properties. European size corresponds to height in centimeters. Choose size by age range or full height (1 inch = 2.5 cm).