XS: Neck: 26–30 cm, Chest: 34–43 cm (Suitable for pets weighing 1.0–2.5 kg) - S: Neck: 28–32 cm, Chest: 39–54 cm (Suitable for pets weighing 2.5–7.0 kg) - M: Neck: 35–42 cm, Chest: 53–71 cm (Suitable for pets weighing 7.0–20 kg) - L: Neck: 42–52 cm, Chest: 71–98 cm (Suitable for pets weighing 20–40 kg) - XL: Neck: 48–70 cm, Chest: 78–110 cm (Suitable for pets weighing 23–45 kg)
