1 About capacity Convenient Main Pocket: This updated running belt with large pocket can hold 6.5 inches smartphones, keys, money, cards, and other essentials. Please take off the phone case when using this running belt. 2 About materialNeoprene material, breathablelightweight,It is Made of water-proof and tear-resistant material and weighs less than 5.64oz. 3 About details Professional design: 1. Adjustable shoulder straps can comfortably fit waists from 22.6 inches to 47.24 inches. 2. An extra pocket can carry water bottles, and the strap above the pocket can fix the water bottles. 3. Breathable EVA waist bag carrying system. 4. High-quality water-repellent nylon fabric. 5 About color:8 colors are optional