My MM10 just arrived, and when I saw how small it is, I immediately thought I'd have to send it back. But ... the bag is nicely made of quality materials and clearly well designed, so I decided to see what gear I could fit inside and how accessible it would be. As it turns out, I can fit a lot in this tiny bag! So ... I just cut the tags off. I moved the divider so I could just fit my E-M5 with 17/1.8 mounted sideways and my Samsung GS3 & case in the phone pocket. That leaves a narrow space for a few small accessories. Just guessing, I could probably fit the FL-300R with the kit flash in that space. The top of the case still closes easily with the lens cap from my 14/2.5 in the pocket inside the lid. Note that my E-M5 is wearing the RRS BOEM5 plate. In this orientation, there might even be room for the matching grip and L-plate. If I remove my GS3 (too tall) and insert the camera lens down, there's still room for the 45/1.8 beneath the mounted 17/1.8 ... or the camera with 40-150R mounted and bayonet hood reversed. With the 40-150R & reversed hood mounted, the 14/2.5 fits sideways in the bottom of the space to the right of the pocket, leaving more space on top. And finally, here's the case next to the E-M5 with RRS plate & 40-150R/hood mounted, along with my GS3 in its case. In addition to the main compartments, there are two side pockets on the outside of the bag. The right side pocket is stretchy, while the left side pocket is gusseted. Inside the front zip pocket, there's yet another pocket that contains a detachable rain shield. With or without the shield stowed inside, there's room for a few small accessories. The MM20 (next size up) is quite close in size to my Domke F-5XB, so I'm glad I managed to fit so much into this tiny little bag. This is my first Think Tank bag, and so far, I'm very, very impressed ... even moreso considering the bag currently sells for ~$45.