Big Mango Multi-Functional Sports Bag 6 Zipper Pockets Waist Bag Fanny Chest Pack with Cell Phone Pouch & Automatic Umbrella & Small Personal Stuffs for Both Men and Women Use - Red Material:polyester material. With adjustable waist strap.Waist strap circumference:46.5 inches. Size : 18 x 16 x 12 cm / 7.1 x 6.3 x 4.7 IN Usuage:for outdoor sports,hiking,cycling and leisure life. Multiple zippers compartments,it can contain your cellphone,keys and small stuffs.