To get the catch out of the way, this bag is a pain to transfer between bikes, because the key to its (excellent) performance is the long, broad velcro strap which must be carefully threaded through the seat rails and the loops on the bag then cinched. It takes too long to move it from one bike to another, for that you want the Ortlieb. But, once this bag is on, it isn't going anywhere, or rattling, or otherwise calling attention to itself. And the lid provides the perfect surface for sewing on a Garmin mount for your Varia radar at the proper height (the bag wasn't watertight anyway!). And the multitool has its own pocket which means you can get at it (fairly) easily w/o opening the bag, you may have to loosen, not undo, the strap. An unsung hero of the seatbag pantheon!
I ride mostly gravel events and have tried various storage solutions for all-day nutrition. My issue with bags I've tried were related to how secure it was on the frame (i.e. wobbly vs stationary), capacity, how easy it was to open/close whilst riding, and how hard it was on my frame (I don't have top tube rivets so straps are my only option). This bag ticked all the boxes: easy to attach and sits securely even during the washboard gravel sections, easy to access, and the frame paint is not affected. And, it's very lightweight!
I've had this pack for about 3 years now, and put it through hell. No issues. Those saying you can't fit a spare / levers / multitool / co2... yes you can; it is possible. It's not roomy by any means, but as long as you carefully pick what you put in the pack, you're good. Keep things flat. For road rides I keep the following: 32-42 butyl spare, one Pedros lever, one much thinner ProBike lever, one Silca Italian army knife, one 20g co2 w/inflator, one Park patch kit, one nitrile glove and one small microfiber rag. Few band-aids. For gravel rides I just stuff the Dynaplug pill in there - and it also fits (tightly). Almost everybody I ride with has this seat pack, it's kind of the standard these days. Worth the extra coin.
This seat pack is perfect for the road cyclist that wants a minimalist flat kit and nothing more. Its everything it needs to be and doesn't overcomplicate (i.e. silca mattone). Fits a TPU tube, tire lever, 16g CO2 w/ head, tire boot, and small mini tool perfectly. Quality construction and I like the wider velcro strap. Can't beat it for the price. Looks clean on the bike- nice not heaving a seatpost strap.
(*would be too small for a regular butyl gravel size tube and accessories)
