Dog life jacket made of nylon with reflective details. Large handle on back section. Thin neoprene panel under belly for maximum comfort. This dog life jacket is tested by the Finnish Institute of Occupational Health (FIOH) according to standard EN ISO 12402-9:2006/A1:2011. Bear in mind that the size should also be adjusted to the dog's weight. To choose the right size, check the dog's weight and then ensure that the vest's dimensions correspond to your dog's size, to prevent the vest from slipping off in the event of an accident. Check measurements/weights below.