credit goes to cocoguy and i am updating this deal. Although the price went up to ~£41 with this code you can get it delivered for £31.05.
use code at checkout : inflight17E
"They are running a "Spring Sale" now - which gives you 40% off on this bag. But you can subscribe to their newsletter to get an additional 10% off - making the price £34.50.
There are many other bags to choose from. Have a look here - http://www.americantourister.co.uk/special-offers/category-en.htm?or=6887612163 "
update: using the email signed up code too makes it 24.15 :)