Review (2/5): They are small but not waterproof
These are 2-thin-layer shower caps. They are lightweight and are great to throw in a travel bag. From a convenience perspective, they can be folded up to a tiny 3 inch square, so that is great. They are not, however, waterproof as the title of the product states. A small amount of water does get in to the cap, so I am not able to supply much more positive to say on these with that major problem. I would absolutely not use these on a regular basis, but they are a good spare or backup to a truly waterproof cap.