Nice bag with a high quality feel. Big enough for my needs but the only thing I don’t like is that my larger quads do skim the bag even when empty but thankfully the material is super smooth and doesn’t cause a friction rub! Love it!

Can’t fault the quality 5/5. However, like all Apidura products very expensive for a bag.Top quality though and great zip pull

Excellent waterproof frame pack perfect for audax

When choosing a bag I wanted something with a good amount of easy to access storage for long distance road rides (audax). The Expedition 5.3L frame pack is the perfect addition to my audax setup. I'm using the bag on a custom 57.5cm C-C cyclocross frame with top of top tube cable routing. There's just enough room under the bag to use two 550ml water bottles. The bag's adjustable front strap allows for a perfect fit, even with the cables and braze-ons. Once installed the bag stays securely in place and doesn't flop around at all.The bag is easy to access while on the road with easy-pulling zippers. The right side features a large storage area that's nearly the entire width of the bag in which I kept a pump, tools and tubes, extra clothing, and food. The left pocket ... MoreWhen choosing a bag I wanted something with a good amount of easy to access storage for long distance road rides (audax). The Expedition 5.3L frame pack is the perfect addition to my audax setup. I'm using the bag on a custom 57.5cm C-C cyclocross frame with top of top tube cable routing. There's just enough room under the bag to use two 550ml water bottles. The bag's adjustable front strap allows for a perfect fit, even with the cables and braze-ons. Once installed the bag stays securely in place and doesn't flop around at all.The bag is easy to access while on the road with easy-pulling zippers. The right side features a large storage area that's nearly the entire width of the bag in which I kept a pump, tools and tubes, extra clothing, and food. The left pocket is flat and is great for holding a brevet card, bars, and batteries. One small issue I had if the bag isn't packed well was the rear of the bag bulging and brushing my knees. This can be avoided by packing well or pushing things around from the outside of the bag while riding. I haven't tested the waterproofness of the bag yet, but the welded seams seem very solid. I also plan on using this bag for off-road bike packing and I'm very confident it will hold up well.Overall this is an excellent bag that I would highly recommend for on- or off-road use.

Good fit for smaller frames

I wanted a quality frame bag for gravel rides. The Expedition 3.0 L frame pack is the perfect size for me. The 5 L would not fit my frame.I'm using the bag on a Santa Cruz frame. There's just enough room under the bag to use two water bottles but it is a bit more awkward to get them in and out. The bag's adjustable straps make it a very good fit, with two large velcro straps fro the top tube and two straps with plastic adjusters fro the head tube and seat tube. The bag has stayed securely in place and doesn't flop around at all, even on the rough stuff.The right side pocket is enough to large store a pump, tools and tubes, arm warmers and a phone. I haven't used the left pocket which is much smaller, it will only a slim phone or a wallet. I haven't tested the ... MoreI wanted a quality frame bag for gravel rides. The Expedition 3.0 L frame pack is the perfect size for me. The 5 L would not fit my frame.I'm using the bag on a Santa Cruz frame. There's just enough room under the bag to use two water bottles but it is a bit more awkward to get them in and out. The bag's adjustable straps make it a very good fit, with two large velcro straps fro the top tube and two straps with plastic adjusters fro the head tube and seat tube. The bag has stayed securely in place and doesn't flop around at all, even on the rough stuff.The right side pocket is enough to large store a pump, tools and tubes, arm warmers and a phone. I haven't used the left pocket which is much smaller, it will only a slim phone or a wallet. I haven't tested the waterproofness of the bag, the welded seams seem very solid, as are the zippers which are easy to use while riding.I would recommend for on or off road use.

Great bag

Good materials, the bag is light and sturdy, can fit various frames. Pockets are large enough. Good visibility inside bag.

Great quality frame bag

Fits perfectly on my Cervelo Aspero size 58, as recommended by Apidura's website. Dealing with Sigma was flawless yet again. Fantastic quality bags, can't go wrong with Apidura

Large waterproof frame pack

I bought this waterproof pack to replace an existing one on a recent tour. It proved itself impeccably as the first day it rained continually for 6 hours over the moors. I would recommend it to anyone.

Perfect for my small frame

I have so far used this for a 4 day backpacking trip (with the matching Apidura saddle pack and top tube bag) and it was fantastic. It fits my new custom Forwards GR20 gravel bike which only has a 49cm frame really well. I travelled around 300 miles, and the bag was barely noticeable. Combined with the other bags in the range I could carry everything I needed easily.

Well made

Pros: A very well made and reasonably spacious bag. The 6.5l version which I bought fits my bike's frame like a glove. The bags kept my belongings dry on rainy days. Cons: It's expensive for what it is.

pretty good

have used this a few times now, seems sturdy and waterproof and reasonably lightweight too. the length of the ties might need to be trimmed if your frame tube diameter is small.