Size S - Red Dingo breastplate in red color 12 mm wide, the neck 25 - 39 cm and the body 30 - 44 cm. Size M - Red Dingo breastplate in red color 15 mm wide, the neck 30 - 48 cm and the body 36 - 54 cm. Size L - Red Dingo breastplate in red color 20 mm wide, the neck 36 - 59 cm and the body 45 - 66 cm. Size XL - Red Dingo breastplate in red color 25 mm wide, the neck 46 - 76 cm and the body 56 - 80 cm. Size XXL - Red Dingo breastplate in red, 25 mm wide, the neck 62 - 109 cm and the body 71 - 113 cm. Our dog harnesses are made with premium nylon webbing, carbon steel D-rings, and our trademark buckle side release buckle. Dog harness designs are available in five sizes to fit any dog.