Accessory article (1) for pets provided with a strap (2) comprising a sleeve having an elongated shape having at least two longitudinal lateral strips, which are mutually superimposed so as to trap a tape (8) and are connected thereto along a predetermined coupling band (11). The tape (8) being provided with a first longitudinal lateral portion (8a) stably trapped between the two longitudinal lateral strips and a second longitudinal lateral portion (8b) that protrudes to the outside thereof. The longitudinal lateral strips being folded at least partially inside the sleeve so that said two pairs of longitudinal lateral strips, the first longitudinal lateral portions (8a) of the tapes (8) and the seam/s are arranged inside said sleeve so as to remain concealed, and the second longitudinal lateral portions (8b) of the tapes (8) are arranged on the outside of the sleeve.
