1. The expandable design of the running belt fanny pack holds everything you need during your workout,Waterproof lining protects the things you carry with you - money, keys, ID cards;2. POCKET BELT FOR ADULTS: Provides a comfortable, expandable, secure and low-profile pouch to carry your everyday essentials3. COMFORT: Soft elastic waistband prevents chafing. The waistband fits comfortably around the waist. Sturdy buckle and construction for even the most active users. Expandable, secure and low-profile pockets4. Smaller personal items: designed and created out of necessity, with other active lifestyle needs in mind