This is THE bag for me. Not too big…and not too small. Zippered pocket, fidlock/ flap main (that’s slightly expandable if you really need to stuff it) and a few interior dividers. All together plenty for tools, spare parts, snacks, keys, wallet, phone, etc. Perfect for 1-3 water bottle type rides. (Or longer if you can re-fill along the way.)
And I love the fidlocks- both for the belt and for the main opening. Very secure, yet easy to open and close. They’re very nice to have, especially when your hands and fingers are tired from riding. And I really like the velcro strap retention things on both sides to hold the excess straps after you cinch the belt down. It holds the excess in place and doesn’t come undone to where the straps end up flapping around. Awesome!
It’s also very comfortable/ disappears when riding, even with one bottle. On my first ride, I got distracted and had to reach back to feel that it was still there. (For a second I thought I accidentally left it home.) But it was there- It’s just that comfortable!
Overall, it’s pretty obvious the designers actually ride. If I had to design and refine a bag over a long period of time- this is it! Well made, well thought out, last long time/ premium bag!