REI Co-op Junction Seat Bag
Consider the water-repellent REI Co-op Junction seat bag an underseat glove box for your ride essentials. It's light and unobtrusive, yet roomy enough to hold a mini U-lock, patch kit, tubes and more.
- Seatpost wrap and compression wing with strap make it easy to attach securely to your bike
- Rugged, recycled oxford nylon shell fabric resists water, abrasion, punctures and tearing
- Durable water repellent (DWR) treatment made without PFAS repels light rain and tire spray
- HDPE foam structure provides necessary support to maintain stability and shape
- Large main opening for easy access to your essentials
- 2 internal mesh pockets and key clip
- Reflective logo and reflective mounting tab for a blinky light (light not included)
- Contains materials that meet the bluesign® criteria
- REI Co-op brand is certified to The Climate Label; we actively fund efforts to reduce carbon emissions across our business and support climate projects around the world
Imported.
View the REI Co-op Junction Product LineView all REI Co-op Saddle Packs| Best Use | Cycling |
|---|---|
| Gear Capacity (L) | 3 liters |
| Gear Capacity (cu. in.) | 183 cubic inches |
| Material(s) | Shell: 100% recycled oxford nylon (bluesign approved); lining: 100% recycled polyester (bluesign approved) |
| Dimensions | 10 x 5 x 5 inches |
| Weight | 6.5 ounces |
| Sustainability | Contains materials that meet the bluesign® criteria Contains recycled materials From a Climate Label Certified brand |
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Goldilocks size.
Big enough to fit tubes, tools, an extra layer, and a minipump. It's hard to find a seat bag that isn't too roadie-small or too bikepacking-large. Seems to be nicely made. Thanks, REI!
Failed design - if you care.
Returning this after attaching to bike for examination. Upside: it's low cost. It has two small zip compartments that would be good so money, phone, keys do not get lost among gloves, hat, vest. Downside: The design details are a failure. 1. It wants to swing side to side even with the straps tightened. 2. The side buckles necessary for both attaching and tightening are ridiculous in size and quite a pain to tighten, because you must pull the straps up and toward the underside of the seat, where you cannot get your hand. 3. Why two zipper closures on the back door? It only needs one, two rattle and are just dumb. 4. Why a flat padded bottom? It does nothing useful. Why is it padded overall, and why does it have a liner? It is not waterproof, so these features do nothing but add weight/bulk. 5. It obscures your seat post of course, so your crucial rear light clips onto a strip of material on the back door, where it hangs completely loosely ready to fly off over a hard bump, and where it cannot be positioned stability to stay directly aimed at the traffic behind you. Ok, it's going to be a perfectly sufficient economical and even super useful bag for casual bike rides for people who do not focus on design, are bothered by things flopping, etc. But for riders who are all about great design it just annoys. Particularly annoying are the tightening/attachment buckles, the light hanger, & double zipper.
Good bag, can be better with one minor change
Bag is great, but seat post velcro is too short for the larger diameter posts.
Better gear is built together
From feedback to field testing, all of our gear is dialed-in by REI Co-op members. Their adventures informed every stitch and detail—making for better, longer-lasting gear.
