I conducted a safe test of my life jacket in open water using my gopro. Watch me squeeze into my wetsuit, zip up my Marinepool life jacket and swim out to sea talking about the pros and cons of this life jacket particular. I do a tests to see how far under water i can go with it, what happens if i was knocked out face down in the water, ease of swimming in it and how comfortable it is. I also just enjoy a relaxing float around in it Filmed in high quality1080 HD