First of all was made the delivery in less than 24 hours, which is already sensational (ok, it lacked the 2nd vest, but this was also replenished in record time). The vest itself looks like a life jacket and is doing what it should. My two sons (5 and 7) it fits well, and it is just in the boat of course much cooler than water wings. The Emergency Whistle we have ever tried and clarified that this is not a toy but may be used exclusively (!) In an emergency. The practice test has also passed the vest, good lift, no problems.