*✔ 【Capacity: 40L backpack】 - Dimensions: 21.6" x 13.0" x 5.9" (55 x 33 x 15 cm), 50L backpack: 26.0" x 11.8" x 8.7" (66 x 30 x 22 cm), large enough to carry the essentials of your families for travelling or outdoor sports.**✔ 【Material】 - Made of high-intensity 900D Nylon fabric, lightweight, durable and waterproof, suitable for both men and women.