Backpack Cow Brown Leather 30x13x39cm Mars & More. This special Backpack has the composition Leather. It is a special addition to your interior and past with most decorative items in your room. The weight of is 0.8100KG, it’s really easy to lift and move the product. This product is available in several sizes. And it has multiple colors. Washing instructions: Wipe with a damp cloth. Size: 30x13x39cm.