OK. This was an experiement. I needed a light waterproof outer cover for my large sil-nyl stuff sack that I strap on my external frame pack. Because of the cost of the sil-nylon stuff bag, I simply wanted to prolong its life. It did not have to be exceedingly strong, because the inner bag basically takes all the stress. So I bought a $4 kids poncho (Coleman) at WalMart. I cut out a bag and sewed it up. By the time I finished sewing there already were tiny holes simply from handling the material. So, if you really want a poncho for your kid, DO NOT use the Coleman el-cheapo! It would probably last 5 minutes on a kid!