A 68 cm long tube made out of 100% Merino Wool. Designed for Cool to Cold weather. Popular for low to medium intensity activities. Replaces 10 different types of headwear. Warming – The extra length allows for more layers & warmth. Ultra-thin – Fits nicely under any helmet. Excellent moisture management. Natural Odour prevention. Free of harmful substances – Certified. Fits Adults with a head circumference 53-62 cm. Weighs 48 gr (1.693 oz).