Review on 🚀 XLAB X-Large Rocket Pocket Bag: Optimize Your Bike Storage by Aaron Franklin

I would say 10 gels fit in this bag. It's not a good case for a phone larger than maybe the iPhone 5S, as the curved shape doesn't allow for a zipper. I make my own wearable products from the Feed Zone cookbook and can only fit 2 boxed pieces (3 x 4 x 1 each) side by side plus 2 or 3 gels as the bag is very thin and on most bikes not much wider than that top tube is. The zip works great, it's very easy to open and close on the go, but if you forget to zip it back up you can lose some things when you hit a bump. The straps are longer than anyone needs so will likely need to be trimmed, but they hold the bag securely without sagging from side to side much. Overall, this is a great little bag that doesn't drag or buckle.