When worn around the waist like a belt, it & rsquo; s very easy to forget you & rsquo; re even using a PFD. It of course will likewise differ PFD to PFD, so it & rsquo; s best to consult the owner & rsquo; s handbook for specific instructions. If it & rsquo; s loose when you & rsquo; re in the water it definitely won & rsquo; t be comfortable as well as might not even function correctly. Since of this style function, it & rsquo; s advised to examine them before you head out as well as change the gas cartridge annually( refer to OWNER & rsquo; s MANUAL for maintenance needs ). When put on around the waistline like a belt, it & rsquo; s easy to neglect you & rsquo; re even wearing a PFD. It of training course will additionally vary PFD to PFD, so it & rsquo; s best to speak with the owner & rsquo; s guidebook for specific instructions. If it & rsquo; s loose when you & rsquo; re in the water it definitely won & rsquo; t be comfortable as well as might not also function effectively. Of course, with any kind of choice of what you & rsquo; re going to put on, there & rsquo; s the design aspect!