BYPA Bike Water Bottle Cages, 2PACKS Aluminum Alloy Updated Adjustable Bicycle Water Bottle Holders for MTB Bike/Road/Fat Bicycle Corrosion Resistant, Lightweight

I just received this bag so have only used it on one ride so can't speak at all to its durability, etc. BUT, I can say that this bag is very well made and I'm expecting to use it for the life of my bike (which I've had for only 6 months) or the life of its rider ! ;o) I especially like that it opens to the rear (as most of them do now) so I don't have to remove it from the bike to access its contents (Like my old pack). I also like its very narrow profile and how it snugs up under my seat. The mesh pocket will come in handy some day, I'm sure. It holds my tube, flat repair kit, multi-tool and there's still a little room. It would be a stretch to get a large phone in there also. I highly recommend this bag if you only want to carry the necessities. The only reason I gave it 4 stars instead of 5 is that I've only used it once so can't speak to it's day to day functionality and durability.

It's kind of funny... when I first got this thing, I decided it wouldn't work on my bike, but after thinking about it and looking at the design, I finally figured it out! And it works just great! Just the right size, and apparently water proof. I guess the only thing I would ask is that the company provide at least a little piece of paper showing how to install.

Holds everything I need to change a tire. Just ONE tire mind you, but that's what I wanted. No extra room for anything...

Works good, looks good, and easy to put on. Fit my keys ,wallet and then some. Highly recommend.

This is a good inexpensive bike bag. It's a little bit bigger than I anticipated, but I needed a larger one to fit my iPhone7. The bag sticks out just a bit past my seat. It doesn't bother me, though. It also has a spot for a bike light to clip on the bag. So far I'm pleased with it.

Great for my new bike. Super nice color and easy to mount!!! Great Cage.

This turned out to be a perfect bag. It sits very nice under the seat and has some structure to it so it doesn't flop around. It a good size and has a little mesh pocket and key clip inside. I may buy one for my other bikes.

this is a MTB staple, i put a spare tube, my truck keys and a Multi-tool in here and still have room for other items.