Suede Airliner Bag by Adidas Originals
Actually, just to be clear, the bag (despite the name) is actually made of a soft faux suede and comes with a large storage compartment, inside pockets and a front zip pocket.
If you want one, it sells for £40.
Find out more at the Adidas Store website
Update: We've just noticed you cal also get a Suede Sir Bag from Adidas too.