MTI's type V Canyon youth life vest also comes in adult sizes. This is one of the few, and in our opinion, the most comfortable, rafting jacket for kids made. Just note that it will not work for anyone below 24" to 25" chest size. The Canyon Youth features a bottom strap that is below the actual foam, allowing you to tighten this vest far more securely than Stearns or (the discontinued America's Cup) Rogue youth type V's. The Canyon also incorporates split cells in the back panel, and front foam blocks that are slit horizontally 2/3 of the way up the chest. Both these features increase your child's ability to bend forward or backward when paddling & rowing.
These come in and orange/blue/black three tone and are only for people under 95 pounds with chest sizes ranging from 24" to 29".
One detail is that the Canyon vest is perhaps the warmest type V we've ever checked out, which may or may not be a good thing depending where you boat. With the very secure bottom strap though, you can unbuckle the upper straps in the calm stretches to cool off.