The big one
The little one
I use the small one to hold tools, q-tips and disposable mascara wands.
The side sections closes with velcro and the middle portion closes with a zipper and flips like a book page. It snaps into the case, so you could take it out if you wanted.
The larger case has a LOT of sections. It's kind of hard to explain how it all works but you'll see in the pictures how it folds out. You can fit a TON of stuff in these bags.
As you can see, there's another "page" that snaps into place, so there's another removable section.
This case also has a combo of zippers and velcro, and as you can see, it holds a TON of stuff. The majority of my kit (aside from foundation, blush and eyeshadow palettes and a few other doodads) fit in these two.
There's even a section for brushes (I don't actually use this section right now, my brushes usually stay in my brush belt, or in their containers on my vanity, but I wanted you to get the full effect.)
These are pretty easy to clean and I am really happy with how compact they are. These are great for travel or for regular storage, but I wouldn't say they're particularly useful as a makeup bag to throw in your purse. The small one wouldn't really serve you well and the large one is WAY too big.
What are your favorite storage solutions?