This cap was designed to keep runners warm and protect them from the rain. Run and keep your head dry. The standard head measurement for this cap is 59 cm. Adjustable up to 4 cm with the rear velcro strap. Cap for heads measuring 55 to 63 cm. Water repellent: Water resistant fabric for rain protection. Lightweight: 49 g. Size: H6.2, W17.2, D17.7cm. Manufacturer’s 1 year guarantee. EAN: 3608429931041.