About this itemNylon material: thickened ABS plastic buckle, back with breathable mesh, moisture wicking and quick drying, breathable heat dissipation instant quick dryadjusted strap:Shoulder strap/waist belt can be adjusted at will, applicable length 60-110cm/23.6-43.3 inches,Size: L:21cmx15.5cm/8.3"x6.1"Large capacity design: double zipper ,built-in multiple independent compartments, classification of portable items.Free up your hands: can be loaded with cell phones, cash, bank cards, keys, access cards and other carry-on items Suitable for running, hiking, walking, jogging, shopping, hiking, cycling, camping, adventure, etc.SHOP WITH CONFIDENCE: To Provide You With the Highest Quality Service, If You Have Any Question, Please Feel Free to Contact Us.We Will Provide After-sales Service Until You Are Satisfied.