Ergonomic design, lightweight, easy to wear and comfortable in any situation. The first time of an inflatable neoprene life jacket. This material protects the inflatable chamber and its activator from temperature changes and is inert to many chemicals and oils, elastic and particularly resistant to crushing. The particular very open V-shape of the front and the deep back neckline makes the SAFE 4.0 very comfortable to wear even on bulky clothing. The padded mesh in contact with the body always makes it very comfortable. Closure of the case through the exclusive semi-watertight hinges with protected sliding that open instantly to inflation, through the Burst system. Complete with underleg. SAFE 4.0 is among the lightest products in its category, (less than 1 Kg). Much attention has been paid to the design of the ISO-certified integrated harness and its buckle closure system. 180 N buoyancy chamber produced with electronically controlled high frequency welding system and high visibility fabric. SAFE 4.0 is compatible with all the main automatic/manual activation systems on the market. CO2 can of 38 gr. equipped with the new anti-unscrewing locking system. For the first time during its development, the special requirements of female fit were also taken into account. The particular position of the activator, very high and inclined, makes it consider the first truly unisex product.