WATERFLY Packable Small Crossbody Sling Backpack Shoulder Chest Bag Daypack for Hiking Traveling1 BUILT TO LAST Made from high quality durable water resistant nylon fabric, The size of it is bigger than a fanny pack, but not as big as a backpack 2 POINT COMFORT: Two ways to make this sling backpack comfortable all day: 1) Adjustable shoulder strap 2) Breathable mesh padded form fitting back 3 IMPORTANT SIZE Item Dimension: The expanded size is approximately 14. 6" x 7. 8"x 3. 5", Adjustable strap fits up to 43" with quick release buckle. The