The fitness running fanny pack is made from lightweight, breathable, skin-friendly and soft neoprene lycra fabric with quick drying, stretchable and water resistant functions. The front zipper pocket can hold up to 6 inches phone. One extra pocket on the side carries the water bottle and another extra side pocket is for small accessories. The reflective straps on front pouch ensure your safety at night or bad weather. Through adjustable elastic strap, you can loosen or tight from 24 to 45 inches. Anti-slip design can make sure the belt will not bounce and chafing during running. 30 45/64" L x 3 15/16" W