As the name implies, a computer bag is perfect for carrying your laptop. If you are at all concerned about the material, this model is made from polyester.
From Viking Direct
Samsonite Laptop Backpack GuardIT 2.0 15.6 Inch Polyester Black 30 x 20 x 44 cm
The product is available from £57.28 at international stores.
This product is also available at 2 unverified merchants.