1. Material: PU leather 2. Function: breathable, wear-resistant, shock-resistant, waterproof 3. Two-way zipper, smooth and durable 4. Neat stitching, tight and not easy to loose 5. Ergonomic handle design, comfortable, firm and elastic 6. Waterproof material, comfortable to touch, scratch-resistant and wear-resistant 7. Air cushion frame + thick cotton velvet inside to prevent computer collision and friction damage 8. External dimensions: 13 inches: 35 x 26 x 3 cm, 14 inches: 36 x 27 x 3 cm, 15 inches: 40 x 28 x 3.5 cm 9. Internal dimensions: 13": 33.5 x 24.5 x 2cm, 14": 34.5 x 25.5 x 2cm, 15": 38.5 x 26.5 x 2.5cm 10. Weight: 13 inches: about 500 grams, 14 inches: about 550 grams, 15 inches: about 600 grams
