Abstract: A personal flotation device that may be worn alone, as well as fitted into a separate garment, such as a jacket or vest. The personal flotation device may include a wearable inflatable bladder that is selectively adjustable into a retaining configuration that fits to a wearer and into a loosened configuration that is removable from the wearer. A closure system maintains the bladder in the retaining configuration. A first component of a releasable attachment system may be provided with the wearable inflatable bladder, whereby the first component is attachable to a complementary second component of the releasable attachment system that is provided on a separate garment to integrate the inflatable bladder and the separate garment.