I have a Topeak QR Aero Wedge (sized small). I find it holds everything I need. I also have a medium size one but I use the small because I don't need the extra room and the bigger/wider bag combined with my narrow profiled saddle tends to cause rubbing against my legs.



The bag itself is great in that it holds its form well and doesn't move around at all. The blinkie strap accomodates most blinkies fine and holds them pretty securely.



The problem however is that it may hold them too securely. The strap is fairly thick and preloads the plastic clip on most blinkies quite a bit. A sharp jolt can thus easily break the clip off. I've snapped quite a few clips on blinkies after hitting a pothole, hopping or popping up a curb. These occurances are even more pronounced when the weather is cold and the plastic of the clip is extra brittle.