Providing essential hydration during your run, this belt features two 6oz, click-in containers that are easy to grab and fitted securely in the belt holsters for brilliant function and practicality. The padded belt itself can stretch and features a comfortable, no-bounce fit that will help prevent irritation through rubbing or chafing. There is a holder for race numbers, easily attached with the toggle system, and an adjustable storage pouch for small accessories or valuables, as well as an ID tag for personalisation.This belt is Audio/Nike+ compatible and it will hold an iPod and Nike+ transmitter, or any other MP3 player for that matter. Any cords or wires will be kept out of the way.*Fits waist size range 18"-42", 45.7cm-106.6cm*Materials: 40% nylon, 30% rubber, 15% polyester, 10% EVA, 5% PU