A harness for pets that allows them to move freely, without causing them damage or possible wounds, thanks to a piece of laminar textile material composed of a central part with front vertexes and rear vertexes which project themselves to define both ears with complementary connection clasps, and both parts of the belt with complementary fasteners, and the central part shows an opening on one of the sides of the center of the part, while on the other side there is a girdle with fasteners for a leash.