I recommend these types of PFD for anyone ownting a boat for one key reason.... It can be work any time without being cumbersome or interfering with movement and inflates instantly when you enter the water by replaceable CO2 cartridge within. Can also be manually inflated by pulling the lanyard. They are available online from many sources such as Bass Pro Shops, Cabelas, Overtons, etc., generally starting at about $89 and going to $270 for deluxe models. Relatively cheap life insurance. Because it is unobtrusive, it will be worn more often.