THE CLOWNFISH CoolBELL Laptop Bag For 15.6 inch Laptops Computer Notebook Bag USB external charging port Shoulder Messenger Business Bag (Black) PREMIUM MATERIAL: This stylish laptop shoulder bag is made of water resistant Nylon fabric. For the inner lining, soft feel polyester fabric is used. The metal fittings such as double zipper heads and pullers used are smooth, sturdy and durable.