Thicker durable PVC: The clear backpack is made of smell-less thicker PVC material; much more durable for everyday use than most backpacks on the market; It is both durable and soft that you can bend it as you need; and it would not crack even in cold weather Reinforced strap stitches: Reinforced cross stitches are adopted to fix the strap firmly; The shoulder straps are specially designed wider than usual to ease the stress on your shoulder; Each strap is sewn on securely and padded for comfort Apply in various occasions: The transparent backpack perfectly meets the requirement of colleges; workplace; Its also convenient for you to check everything you need is ready and easy access Appropriate occasions: Clear backpack is your perfect choice for colleges and workplaces where require security checks; It is also convenient for you to check everything you need to be ready.