Material]The running belt is made of high-grade polyester fiber skin-friendly material, no odor, light and thin, breathable and quick-drying, waterproof and sweat-wicking, and effectively dissipates sweat from the waist. The fit is snug and not loose when running.Sports Water BottleThe fanny pack is equipped with a 300ml sports water bottle, with a tailor-made arc, allowing you to wear it closely and comfortably.Safety zipperThe zipper is upgraded, and the waist packs adopts high-grade metal zipper puller, which is smooth and does not get stuck, effectively preventing items from falling and losing.3 PocketsMulti-pocket design, wrap-around elastic expandable pockets to meet your daily needs, and waterproof and sweatproof lining on the inside of the pockets, so you don't have to worry about getting your phone wet.SizeThe waist band pack is suitable for 23.5-33.5 inch waist, suitable for 31.5-43.5 inch waist, choose the size according to your actual waist, with double Velcro design, allowing you to wear freely adjust, prevent the running belt from falling off or loosening.