Love eagle creek pack it gear. I use them every month since I travel a lot. This one I use in my maxpedition Noatak EDC bag to hold an extra pair of hiking socks, winter hat and gloves in case I get cold on a short hike with my dogs. It keeps things more compact in a bag allowing me to bring more gear and decreases frustration level when I am looking for something; also prevents item from getting caught in bag zipper. I can just remove it by its dandy handle and put it back in a jiffy. I don't know how I lived without these things!