Bought one for each member of the family. The kids size fits both my 5 and 7 year old (very big, but didn't drag the ground or allow rain to get inside). They come with a carrying pouch and packed easily into my daybag, taking up a very reasonable amount of space. These saved us at Disney where it can just randomly begin to pour (usually when you're the furthest away from shelter). They are very thin and light, but don't feel cheap or as if they will tear. They do the job well and make it very easy to spot your kids in a crowd! :) hang to dry then fold them back up and shove them into the pouch again. These were 3 times more expensive in the airport and hotel gift shops than on Amazon, so be proactive and save some bucks (although in hindsight I wouldn't have purchased one for my husband. He'd rather stand there soaking than wear a poncho, but that's another story...)
Highly recommended for an active family.