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XS: Chest girth 30 cm, Back length 20 cm, Recommended weight 1.5 kg
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S: Chest girth 35 cm, Back length 25 cm, Recommended weight 1.5–2.5 kg
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M: Chest girth 40 cm, Back length 30 cm, Recommended weight 2.5–4 kg
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L: Chest girth 45 cm, Back length 35 cm, Recommended weight 4–5.5 kg
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XL: Chest girth 50 cm, Back length 40 cm, Recommended weight 5.5–7.5 kg
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2XL: Chest girth 55 cm, Back length 45 cm, Recommended weight 7.5–10 kg
