SunSmart Multi-functional Waterproof 15 inch Laptop Backpack Rucksack Packsack with Convenient Headphone Cable Hole for 15 inch Notebook/ Laptop Transformed into Backpack Handbag and Satchel 15.4-inch Notebook/Macbook Pro 15.4'' / Macbook Air 15.4'' (grey) Can be transformed as backpack handbag and satchel with hidden shoulder straps for all 15.4/17 inch laptops and Macbook Pro 15.4'' / Macbook Air 15.4''/ Macbook Pro retina display 15.4''. Considerate design of headphone cable hole for listening to songs without taking your device out. Specifically designed with multi-sized pockets and inner separate compartments and mesh bags for holding your laptop, iPad, books and other necessary objects. Made of durable waterproof nylon fabric with thick cotton-padded interlayer which can perfectly protect your laptop and hold your objects during your travel. Comfortable design of widened shoulder straps and the back padded with sponge and foam which increases the comfort degree by 50% and makes your travel much easier.