Yiuswoy Casual Style Cute Polka Dots Canvas Backpack With Laptop Lining Size: 45 x 33 x 16 cm Style: Casual Polka Dot Canvas Backpack High volume canvas Backpack with laptop lining Attribute: Waterproof, durable, adjustable shoulder straps Unique design straps ease the pressure on the shoulder, and The cushion with high permeability material, have never cover the sweat when you carry it a long time