Review on Waterproof Bike Seat Bag by ROCKBROS, 3D Shell Saddle Bag for Mountain and Road Bikes - Cycling Seat Pack Under Seat by John Clark

I love how easy it is to get on and off the bike. I pack in extra hoses, carbon dioxide cartridges and my multi-tool. Unfortunately after all of this was packed while trail riding on my Trek Marlin 5 MTB, turbulence from the weight inside and trail riding made the zip pop open. I lost everything and had to buy back the hose, carbon dioxide cartridge, inflator and multi tool. I learned my lesson and now I'm pulling myself together. A small inconvenience for a good product.