Finbella Riviera Muse minimalist backpack - BlackThis medium size backpack is just what you need for your daily mermaid travel needs! With a hidden laptop pocket, this backpack has room for gadgets and gizmos aplenty, while the water resistant material will protect them from weather beach pool mermaid meetup festivities! Made from 100% polyester Fabric weight: 9 oz. yd. (305 g m) Dimensions: 16. 1 (41 cm) in height, 12. 2 (31 cm) in width, and 5. 5 (14 cm) in diameter Capacity: 5. 3 gallons (20 l)