Practical balaclava in 100% merino wool from CeLaVi. The balaclava is stretchy and has a good fit that fits snugly around the face. The hat is longer at the front and back, which helps to shield the neck and neck from the cold and wind. Good under the bike helmet or ski helmet. Certified according to the OEKO-TEX STANDARD 100 Cert. No. 2276-364 DTI