ROCKBROSBike Seat Bag, Waterproof 0.6L Bike Seat Bag Frame Bag, Lightweight Bike Saddele Bag Top Tube Bag, Bike Accessories for Mountain MTB Road Foldable Bikes

Great bag, very well designed with a stiff plastic insert that helps keep its shape. I've been looking for a bag like this for a long time. I'm the kind of rider who likes to have a bike kit with EVERYTHING I could possibly need - but I don't like to ride with a bike bag that is too big and bulky. The zipper seems very sturdy (only time will tell) and even has a little "hood" that you can push the zipper up into when it is fully closed - presumably to keep the zipper protected to avoid water intrusion. My only complaint (and it's minor) is that to fully utilize this bag, and fill it, you really need to remove it from the bike to get things packed in properly. Once unzipped, things will fall out - which is fine - but to get everything organized in the bag it really needs to be taken off the bike. Fortunately, it's easy to get on and off because of the velcro straps.

Excellent quality and really Walter ressistant

Great understatement bike bag. Easy to install and feels very secure

Good location for small bag. Holds tire tube, CO2 inflate tire irons. Slightly interfering with a seat mounted taillight

This is a basic cycling tool bag that just works. I was concerned that the velcro straps would loosen during a ride, but after 47 miles on gravel, the straps stayed secure. The bag is big enough -- I stowed a tube, 2x 16 oz CO2 cartridges, an inflator, multi-tool, and a patch kit with room to spare. you will need to trim the velcro straps around the seat post, but a scissors is all you need.

Nice design and the shape allows for some flexibility in where to mount it, but it's deceivingly soft while I expected a hard shell case. Once you've put some weight in it (multi-tool, air pump, allen wrenches) it sags into a sack & bulges where it doesn't sag. The material is also quite thin, not necessarily good for longevity. If these characteristics don't bother you then it's a very nice bag for its flexibility, shape and volume.

Perfect little bag

Nice