I have several different brands, and this is is among my favorites. Straps hold the bag firmly in place, and it has a small pocket on the opening flap. My only suggestion for improvement would be on the elastic loops underneath, I use these to hold a spare tire and the could be a little more generous in size. Better yet, have an adjustable nylon strep with a buckle for easy attachment and removal.
Really like the aero design and the room inside for tubes tool and inflator. Simple to attach with the strap and stays put. I had a previous model that had a click-in kind of slot attach under the saddle, but the strap on this much better.
The medium size (with zipper expansion if needed) fits nicely within my 145mm saddle dimensions, is secure and well-made. Swallows a bagged 25mm tube, tire tools, multi-tool, wallet and clamshell cellphone, couple tubes of Neosporin, couple individually wrapped sterile wipes, eye drops, cut-tire patch. I've used the zipper'd expansion only once, but it came in handy. (Riding home holding an acquired item in one hand is such a drag.) Would buy again. (Would have preferred dual zippers on the back, but all the other features still add up to best I've used.)
I commute to work and enjoy the extra space and durability of this wedge pack. The illumination is outstanding.
I commute to work before day break and I want to be visible on my morning rides to work! I would also like to
mention the aero shape is very neat and attractive!
This saddle bag is the one to get. Excellent design and construction. Choose your size wisely. I have the medium and its perfect since my seat height only exposes around 5 or 6 inches of seat tube. The large would have been too big.
The medium version is perfect if (like me) you want to carry 2x-tubes, 3x CO2, inflator, tire levers and a mini-tool. Mounting is easy and stable (go w the strap & buckle option). Bag size will not bump your legs if properly mounted.
I have used a Topeka bag for a number of years and pretty much carried 2 tubes for spares on long endurance rides in a small bag. Since I have gone tubeless the mini bag is just right.
Bought both a medium and a large. One for my wife's bike and one for mine figuring a could steal hers if I needed something smaller. Been doing some longer gravel and xc rides where the additional volume has been a nive feature without being overly bulky. Snugs down nicley with no floppping about.
It's a wedge pack, so not much to say other than it functions exactly as I hoped. Attaches very securely without fuss, no movement or rattling. Small, but holds two tubes, two C02 cartridges, a C02 inflator, patch kit, multi-tool and one misc. item (energy bar, keys etc.). Simple and clean design. I'm so far very happy.
After years of fussing around with various size and attachment methods, I've settled on this pack as the most versatile option for single day rides on road or cross bikes. Size small is the right size. Medium is too big unless you want to fit 2 29'er tubes - otherwise a small will fit 2 cx tubes with room to spare.
Don't bother with Velcro or custom attachment methods (fizik).. go with straps and clips like the topeak.
Downsides not at all waterproof. Pack can bump legs depending on position.