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The Seatpacker 15 with quick release aluminum hanger. Completely waterproof!

Weight of seat bag: 440 g / .95 lbs
Weight of rack: 280 g / .6 lbs
Volume: 15l. / 925 cu. in. 
Requires a minimum clearance of 8" from seat rails to top of tire:
Maximum Load: 5 kg / 13 lbs.
Detail Measurements

If the seat rails of your saddle are more than 3.5 inches (89mm) apart, you will need the following adaptor More Details...

100% Waterproof   Seatpacker Rack  No Tail Wag

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New Bikepacking seat bag! The Seatpacker 15 with quick release lightweight aluminum hanger. Completely waterproof with sealed liner, easily slides on and off for easy packing and handling. Seatpacker rack totally eliminates side to side movement (Tail Wag). Plus it works with dropper posts!! Slim front design and reinforced front panels eliminate thigh rub. Needs a minimum clearance of 8" from seat rails to top of tire.


Want to know more about our product or get reviews from cyclists who have tried it? Read these following blog posts:

Seatpacker 15 - Bikepacking Seat Bag | By Arkel

9 customer reviews

Seatpacker 15 Bikepacking Seat Bag (patent pending) reviews

Average rating
(based on 9 reviews)
  1. Class leader

    By Fear an rothar

    I bought one of these bags right after it became available and have used it on several multi-week and multi-day trips since then. It's a winner on every front from my perspective. The stability, lack of tail-wag and lack of leg rub allows the bag to disappear and lets you get on with enjoying your ride. The ease and speed of bag mounting and removal is also appreciated, as is the resulting ease of packing. I have put its waterproof qualities to the test many times and it has passed with flying colours. Finally, the quality of fit and finish is exemplary and promises many more years of troublefree (ab)use.

    I do, however, have a couple of small observations/requests. It would be nice if the very welcome and convenient zippered pocket was a tiny bit more expandable. Sometimes, if I have packed the main compartment suboptimally, with something poking upwards towards the zippered pouch, it can be difficult to get items in and out of it.

    The reflective webbing on top of the bag is very convenient for strapping on random items. However, the resulting height can make it a little difficult to swing my leg over the bag, when getting on and off the bike. For those of us both long in the leg and not using dropper posts, it would be really nice to have similar reflective webbing available for use on the underside of the bag too.

  2. Superbe conception

    By Patrick

    J'ai acheté ce sac il y a deux ans et j'en suis toujours ravi. La construction est durable, imperméable et super efficace. Initialement acheté en prévision de voyages de bikepacking pour mon vélo de montagne, il a même remplacé mes sacoches sur mon vélo de route pour le transport vélo-boulot. D'une stabilité exceptionnelle, il est aussi compatible avec les vélos à double suspension ou avec une tige de selle télescopique. De plus, le service à la clientèle de Arkel est exceptionnel. En fin, c'est un produit local, encore un plus!

  3. Pretty impressed so far with how stable it is.

    By Jeff

    I received the Seatpacker 15 today and installed it. It is perfect! I packed it up with my tent, sleeping pad, pillow and cook system. Pretty sure my sleeping bag will even fit in it once it arrives! Pretty impressed so far with how stable it is. I have a Apidura seat bag too but the Arkel one is way easier to pack despite only being 1L bigger. I am looking forward to taking it on it's first adventure once the weather warms up a bit.

  4. Pricey, but worth it!

    By GalenaNightfire

    I bought both the Seatpacker 9 and 15. They are the only seatpacks that work on my XS carbon frame. I use the 9 for day trips in winter weather to carry all my layers. I use the 15 for UL touring (paired with Revélate frame bag and Sweet Roll). Yeah, ya gotta pack light, and wash out yer bibs each night, but it makes for pleasant days of riding without all the extra weight of panniers(and the extra crap you'll shove in them, just because you can).

  5. Very good for light road bikepacking

    By Martin

    I bought this bag to use in addition to a half frame bag when I do light touring. I put tools, repair and nutrition in the frame bag, and keep the seatpacker for cloths and lighter items. It works perfectly. The light frame that hold the bag does a very good job at keeping the bag stable. I can even stand on the pedals when doing steep climbs. I bought this product for that very reason and I am not disappointed. It does work. I find it pricey for a bag but at least the quality is there.

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