Topeak Aero Wedge Pack Large 4.5" x 8.5" x 5.5"

Pros

Good size for carrying more than just the "bare bones".
Attachment system works great.

Cons

Would like to have some mesh side pockets inside to help organize things better.

Other Thoughts

I started with a Topeak SideKick but found it too small. I carry a spare inner tube, patch kit, multi-tool, tire levers, digital air pressure gauge, wet wipes, and some miscellaneous small stuff (zip-ties, PowerLink, etc.). This made for a VERY tight package. This is a much better size. I can also carry some sun screen, a 2nd inner tube (or a big 29r) and a power stick for my i-Phone. I use the i-Phone in a Wahoo case on my handle bars and it functions as my bike computer. Works OK, but it needs a power bump on 60 mile breakfast rides and beyond.
The bag has a mesh pocket on the inside back flap that I put my ID, cash and small items in. It would be helpful if there were some mesh panels on the sides also to organize things. It gets pretty jumbled with everything in one big compartment. There are elastic straps on the bottom. I tried to use them to hold a bike pump when I switch between my road bike and the mountain bike which does not have a frame holder. The straps were not strong enough to hold it securely; but it would probably be OK for spare tire or other items that have more bulk and stretch the straps more.
I keep the zipper in the unexpanded configuration. If unzipped, I could probably fit a compact rain shell in.
I use the loop on the back for a rear light. The attachment system works well and the bag has never come loose on rough gravel roads or trails. It is very easy to take of the bike and I do remove it when stopping for breakfast. I also bought an additional Fixer so that I can switch the bag between bikes. Fully loaded as described above I measured 1080g (2 lbs. 6 oz.). Racers and weight weenies would freak at this amount, but for my use at club rides averaging 16-18mph and centuries it suits me. Overall I think this is a very good product for my needs. Highly recommended!

Pros

Roomy. Have it mounted on my ebike saddle rails. Has Fat tires so the tube and tools and wrenches fit fine. Solid. Fit on rails easily and the click in slide mount was refreshing to see the thought put into it. No rattling or shake at all.

Other Thoughts

Had many saddle bags in my 50 years plus. This bag works well and is an excellent value for price.