Because sun and sweat can feel just as challenging as the miles ahead, this adidas running hat has perforations to keep air circulating.A pre-curved brim keeps the rays out of your eyes, while CLIMACOOL wicks and disperses sweat for cool, dry and distraction-free performance.CLIMACOOL helps you manage sweat with materials that wick and manage sweat quickly.Its fast-dry fibres give you a fresh-skin feel.A lightweight running cap with CLIMACOOL to keep you cool, dry and ready.One size fits most.-100% polyester (recycled).-CLIMACOOL.-HEAT.RDY.-Pre-curved brim.-Adjustable back closure.-Laser-cut perforations.-Technology:- CLIMACOOL.