B001AEO2V8 LANACare Certified-Organic Merino Wool Balaclava/Riding Hat, Soft Grey, Size M/5-9 yr

Made of soothingly soft KbT, GOTS, IVN Best Certified Organic Merino Wool.
Single layer felted wool. Fits easily under helmet, or can be worn alone.
Natural fibers breathe to maintain comfortable temperature against skin.
Wool’s natural lanolin minimizes need for frequent washing. For best results, wash by hand with lanolin-containing woolwash.
European size corresponds to height in centimeters. Choose size by age range or height, rather than Amazon’s auto-sizing chart. 128 = 51 in.