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Item # TBK0206

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Item # TBK0206


It's right there.

Nothing beats the convenience of an under-seat pack. Not that they're very large: the Timbuk2 Medium Seat Pack XT is 6.7x3.9x3 inches, but once you have your important items stashed in the seat pack, they're there when you need them. Stash a spare tube, a patch kit, a multi-tool, and some extra chain in case of the typical mechanical failures.

The Timbuk2 Seat Pack XT comes in two sizes: Small (5.5x2.6x2in.) and Medium (6.7x3.9x3in.). It's available in Black, White, Gunmetal, Bixi Red/black, and Emerald/reso yellow/red.

Tech Specs

ballistic nylon
[S] 5.5 x 2.6 x 2.0 in, [M] 6.7 x 3.9 x 3.0 in
[S] 31 cu in, .5 L, [M] 55 cu in, .9 L
1 rear
Claimed Weight:
[S] .2 lb, [M] .3 lb
Recommended Use:
road cycling, mountain biking, commuting
Manufacturer Warranty:

Reviews & Community

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Timbuk2 Seat Pack XT

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Here's what others have to say...

4 5

Good Quality, Medium Quite Spacious

  • Familiarity: I've put it through the wringer

I needed a bag for my commute/errand/city bike. I have a rack on it that can carry bigger bags, but I don't always keep that on it and I wanted to have a tube, tools and the like should I need them. I got a medium in white. I was able to put a 26"x1.9-2.1 tube, Park Tire Levers, a Park multi-tool and still have enough space to throw in my billfold should I need to.

If I were using road tubes, I could easily swallow two and those tools.

It attaches easily under the seat and so long as you snug it in place well, it stays put without issue.

I like the white because I can tell quickly from a distance that it is closed. So when I'm walking away from it at a store or wherever, I know I remembered to zip it after grabbing my wallet and locking everything up.

5 5

Good quality bag

  • Familiarity: I've used it several times

I got the medium and use it on my mtb. It fits a spare tube,multi tool, co2 inflator well. It's good quality haven't had any issues with it.

4 5


  • Familiarity: I've used it several times

I purchased this bag in a size small, and just a heads up the small will literally only fit a road tube and Co2 - it is very small. If you are planing on purchasing this pack for a mtb, get the medium. I love it because you can hardly tell it is there, and the construction of the bag is really nice.

5 5

good pouch

  • Familiarity: I've used it several times

ordered a medium bag and they work great. plenty of room to put my iphone 4s, a spare tube, and my multi tool. also really like the reflector tape on the back so i am able to be seen when it gets dark out!

2 5

Small is SMALL

  • Familiarity: I've used it once or twice and have initial impressions

Ordered two of these, a medium and a small. The small is VERY small. As in "you can't fit your phone in it small." The medium is an adequate size for the essentials (CO2 inflator, patch kit, spare tube, phone, etc.). Our second issue was that the zipper is very stiff and cumbersome. Since the pack itself is fairly flexible, it was pretty difficult to open the zipper without using both hands to hold the pack just right to get the zipper past the bottom of your seat. Ended up returning both and will try something else.

5 5

Fits REI Bike!!

I was a bit worried this bag might not fit right on my Novara Carema Pro bike from REI but to my delight I got the Medium, White which not only fits extremely well but it matches my bike to a "T". I can fit a tire tube, CO2 inflator and extra cartridges, and tool kit. I haven't tried yet but I might be able to even get a power bar in there too! Love the fit of this bag for my bike.

5 5

great bag!

  • Familiarity: I've used it several times

you can fit everything you need in this bag, I ride with an extra tube, tire repair kit, 17 tool kit, and my cell phone.. so you can carry what ever you need to complete your ride, and make sure you have every thing!

Responded on

the small one doesn't fit my phone, I have to order the medium one.