When used around the waistline like a belt, it & rsquo; s easy to forget you & rsquo; re also wearing a PFD. It of training course will also differ PFD to PFD, so it & rsquo; s best to seek advice from the owner & rsquo; s manual for specific directions. If it & rsquo; s loose when you & rsquo; re in the water it definitely won & rsquo; t be comfy as well as might not also work appropriately. Since of this style function, it & rsquo; s recommended to examine them prior to you head out and also change the gas cartridge annually( refer to OWNER & rsquo; s MANUAL for upkeep requirements ). When put on around the midsection like a belt, it & rsquo; s simple to forget you & rsquo; re even putting on a PFD. It of program will also vary PFD to PFD, so it & rsquo; s best to consult the proprietor & rsquo; s manual for specific guidelines. If it & rsquo; s loose when you & rsquo; re in the water it certainly won & rsquo; t be comfortable and also may not even work properly. Of program, with any decision of what you & rsquo; re going to put on, there & rsquo; s the design factor!