LANACare Super Soft Organic Merino Wool Baby Balaclava Made of soothingly soft KbT, GOTS, IVN Best Certified Organic Merino Wool. Fits snugly, yet easily over head. Natural fibers breathe for comfort in warmth or cold. Absorbs moisture, remains warm even when wet. Natural wool with lanolin gives self-cleansing properties, minimizing need for washing. For best results, wash by hand occasionally with lanolin-containing woolwash. European size corresponds to baby's length in centimeters (even hat sizes). 1 inch = 2.5 cm. For best fit, choose based on baby's full-length. Size by age in months is average fit.