White Cloud Ultrathin Casual Outdoor Sport Polyester Stealth Small Running Travel Waist Fanny Bag Pack Material:Polyester. Size:21x0.3x12cm/8.27x0.12x4.72inch(LxWxH).Strap:120cm. Adjustable strap with plastic buckle. The bag has three zippered pockets which is good enough to carry your phone,cash,credit cards and keys. It is a sleek design, light and bulky.It is so flat that can be worn under clothes,very secure and safe.