This bag is no longer in production at Givi but is still available on ebay.
This is the second one of these bags I've owned. The main zip on the first bag failed after 3 1/2 years and 35000 miles of quite hard use. Otherwise the bag was still in good condition. I think that's pretty good.
This bag is an excellent fit on my KTM 1290 Super Adventure. Shaped well to the tank, just about adequate handlebar clearance on full lock, and just low enough to give me a view of the instruments.
It's easy to fit and remove with the tank lock system (you need the correct tank fitting for your bike) although I would recommend using the safety strap around the handlebars just in case the bag does come unclipped.
The bag comes with a waterproof cover which is necessary in heavy rain.
The side pockets are removable and can be used as a bum bag. I've never used this feature though. Nor have I used the detachable map / tablet pocket.
Recommended (but this bag is bike specific....there are others in the range for different bikes)
Tanklock is a good product but has limitations. I have the 20ltr version and find it a bit high and narrow compared to my old Givi clip on type. Yes it's easy to get off but it is norrow and deep,the item you want is always at the bottom. The old system also offered some protection for the tank paint work as well
Quailty product from Givi. Simple to attach and detach from the bike. Not trialled it in the wet yet but the waterproof cover should keep it dry. It looks good too. Ideal for storing documents, money, cards etc, indeed anything you need easy access to to pay for tolls, fuel, etc. The pockets on the detachable belt are handy for this. Highly recommend this tank bag.