When I received my box of Dot&Dot Packing cubes, I also received their Multi-Purpose Bag. Since I liked the packing cubes, I was hoping that this bag would be just as good. 

I received the x-small version of the bag. This one is 7.5" x 3.5" x 1". That makes it ideal for carrying smaller travel-sized products or a few bottles of nail polish, as seen in the picture above.  A rather heavy-duty zipper holds the bag closed while a clip hangs from one end in order to clip the bag to your luggage. 

While there aren't a ton of things that will fit into the x-small bag, it has been put together very well. I would probably get a lot of use out of the larger bags for carrying around my shampoo, conditioner, and deodorant when the family goes away on vacation. I would probably get more than one bag so I can keep my daughter's stuff separate from mine. If you travel a lot, these bags are definitely worth the price.