This is actually my second top tube bag. This time I ordered as a bundle, (with the Seat Bag and Wallet), based on the fact that I liked the quality, size and feel of the first one that I ordered. The quality and fit are top notch. The size is perfect for a couple of snacks and a few other small items.
High quality look, feel, and performance. I was able to bolt-mount mine. It's very stable, holds it shape, and works great. During the winter, I tend to carry a backup headlamp, a couple of spare (18650) batteries, and a snack bar in the bag. Things can rattle a bit on the bolt heads, but that's easy to avoid. California Gold color is great.
I like the structure of it and the bolt-on option. It's not very large, so probably more geared toward aerodynamic road tiding than big days in the backcountry. I like the webbing on the side. Bag feels solid. Only real reason to not give 5 stars is that the color looked more orange on the website, and showed up a much lighter yellow, which looks pretty bad on the bike. Function over form, it's a good little bag.
Ah, the top-tube bag: got a second one for my road bike, with the first on my gravel. ALMSTHRE designs good stuff: durable, attractive, and ergonomically fitted to the bike. It doesn't hold much--a pair of glasses, a cell phone, maybe a gel or bar, an e-pump. I also use it for easy access to a small camera.
Great product. It has all the necessary parts for install. Works great.