I got these about 3 years ago from massdrop when they were in burgundy. I used them mainly in the jungle during my field exercises in the military. These made my jungle experience so comfortable and fold up into such a small pouch, it was extremely easy to carry it around. When I wasn't using it as a pillow, the thinness served as a comfortable back support in my vehicle, especially after hours of heavy weight on my body.
The downside is that the pillow is pretty thin. As a side sleeper, I had to reposition multiple times to find the most comfortable position to sleep in. This pillow's "X" shape made your head sink in if you're sleep facing up. Additionally, after multiple use, there were sweat stains on my pillow and the smell didn't help. There might be a way to wash the pillow that I was not aware of, but the pillow served me well.