The waterproof waist bag is made of PVC with an adjustable waist belt. Soft jacket does not affect the operation of mobile phone functionality & variety of protective effects on the cell phone. Offers the best protection with unique sealing arrangement in any water place. Adjustable waist buckle make sure any size of body fits! All purpose waist pack can not only hold your phone, but also purse, cigarette, keys, liptips etc. If you need more for a group, please message me.