1. Material: Polyester 2. Features: breathable, waterproof, wear-resistant, anti-theft, shock-resistant, lightening 3. Made of high-quality fabrics, waterproof and wear-resistant, comfortable to the touch 4. Neat stitching, beautiful and durable 5. Metal zipper, smooth opening and closing, strong and durable 6. Internal tongue design, shock absorption and anti-scratch 7. Large-capacity multi-compartment design to meet daily travel needs 8. External dimensions: 11.6-12.5 inches: 34 x 23 x 3 cm, 13.3 inches: 37 x 26 x 3 cm, 14.1-15.4 inches: 39 x 27 x 3 cm, 15.6 inches: 43 x 31 x 3 cm 9. Internal dimensions: 11.6-12.5 inches: 32.5 x 21.5 x 2.5 cm, 13.3 inches: 35.5 x 24.5 x 2.5 cm, 14.1-15.4 inches: 37.5 x 25.5 x 2.5 cm, 15.6 inches: 41.5 x 29.5 x 2.5 cm 10. Product weight: 11.6-12.5 inches: 280 grams, 13.3 inches: 320 grams, 14.1-15.4 inches: 350 grams, 15.6 inches: 400 grams 11. Note: Only the storage bag will be sent for delivery, nothing else!