It can save your life even if it is not always mandatory to carry it on board. Main typologies of life jackets, according to their buoyancy expressed in Newtons (1 N = 0.1 Kg) are:
• ISO 12402-2 | 275 N for adults and 140 N for teenagers and children
• ISO 12402-3 | 150 N for adults and 75 N for teenagers and children
• ISO 12402-4 | 100 N for adults and 50 N for teenagers and children
Units navigating over 300 meters from the coast and within 6 nautical miles or in inland waters must carry life belts on board that comply, as a minimum, with performance level 100. Units navigating beyond 6 nautical miles away from the coast must carry life jackets on board that comply, as a minimum, with performance level 150.