Based on the UDG courier bag deluxe, this NI flavoured version sports an extra audio interface pocket and some nice Traktor branding. Externally the bag feels robust and rubbery, but when you open it up you find the more familiar tough nylon that's common to many bags.
There are plenty of pockets, pouches and compartments inside and the shoulder strap is extremely comfortable, even if you cram 35 vinyl records and a laptop in there. As you would expect, the laptop compartment has extra protective padding, and there's a very useful zip pocket on the top-rear of the bag for stashing your tickets/passport etc in. This is accessible without you having to open up the main part of the bag - very useful if you're travelling with this bag as hand luggage.
You probably wouldn’t want to buy this unless you were a Traktor user, even though the extra compartment is very useful. Also, it's not big enough to fit many of the major controllers (such as NI's own S2 and S4), so you'd need a separate bag for one of those. But, if you're after something to transport the F1, X1 and new Z1 controllers around, this would be a great choice.
All in all this is a great day-to-day and hand-luggage bag with very high quality construction.