Buff&uml; Jnr Wool 30 centimeters wide Junior/Child size fits young people aged 4  12 years with a head circumference of 50  55cm/19.6  21.6 Made from 100% natural Merino wool, Wool BUFF weighs 47g/1.7oz and measures 52cm x 22.5cm or 20.5 x 8.9 Machine or hand washable at 30 degrees and non iron, Wool BUFF is naturally elastic and will retain its shape. Wool BUFF is anti-microbial so it wont start to smell after extended wear, is colour fast and wont fade. Certified to meet Oeko-Tex Standard 100