Great tank bag!
I've been using tank bags for close to 30 years and have owned plenty of them. This is by far the highest-quality, best-thought-out bag I've used - and it fits my GS like a glove. The oversize map pouch is especially handy. My only quibble is that I'd like to see velcro or a zipper to close the pocket on the inside of the top flap. It's great to have a pocket there, but stuff falls out easily.