100% Coolmax Extreme - Wicks sweat away for reliable comfort.nSeamless construction - No irritating seams or hems.nSuper stretch - Will not lose its elasticity, is colour fast and will not fade.nPolygiene treatment - Will remain fresh as the silver ions prevent the build up of bacteria in the fabric.nDesigned to fit most adults - 53 - 62cmnTechnical headwear for active sports, the BUFF Headband offers hair and sweat management for runners and yogis. COOLMAX PRO quick-dry fabric wicks away moisture and blocks UV rays and helps you keep your cool. A Polygiene treatment is added to resist odors and bonded seams reduce irritation.