An ergonomic study of the human body in motion while sailing has enabled Tribord to design a life jacket that is safe and comfortable, even during maneuvers. The Secufit life jacket allows the wearer total freedom of movement, whether working on the boat or in survival mode. The foam collar supports the head, making it more comfortable than other life jackets and reducing any strangling sensation. A unique, patented design keeps the headrest folded over and out of the way during sailing but unfolds immediately if the wearer falls in water.