This running belt comes with a holster that will fit most smaller water bottles to allow you to bring a drink for those long runs. This has been one of the favorite features of our waist pack because most waist packs that have water bottle holsters are very large and bulky whereas our waist pack is still small and sleek. Features a slim design that is fully adjustable and expandable to fit many objects. This two-pocket hip pack fits men and women with waist sizes of 24 to 42 inches. Comfortable soft elastic waist belt prevents chafing while the sturdy buckle and glides provide stability and eliminate bounce for the most active users.