More information:Elastic material - Lycra and polyester. Comfortable to wear. Thanks to the good elasticity, the running belt bag fits perfectly and does not shake during exercise.Universally compatible- The Gisdancz treadmill is universally compatible with most smartphones up to 6.7 inches. The large capacity pockets can hold multiple things, such as wallet, cash, passport, sports gel, etc.Security Pocket - Suitable for storing cash and credit cards. There is also a small pocket for keys. No need to open the big pocket to search when you need it.One size - 65-130cm waist. Feel at ease when you train with our one-size-fits-all belt bags. The adjustable elastic strap hugs the body, is not bulky and does NOT loosen during exercise.Be safe - Reflective strip. Reflective strips can protect safety even when running at night. jpg" style="height: auto; width: 800px;" />