•Size: XS (Extra Small) Chest Circumference: 30 cm Back Length: 20 cm Suggested Weight Range: 0.5-1 kg (1-2 jin is approximately 0.5-1 kg)
•Size: S (Small) Chest Circumference: 35 cm Back Length: 25 cm Suggested Weight Range: 1.5-2 kg (3-4 jin is approximately 1.5-2 kg)
•Size: M (Medium) Chest Circumference: 40 cm Back Length: 30 cm Suggested Weight Range: 2.5-3 kg (5-6 jin is approximately 2.5-3 kg)
•Size: L (Large) Chest Circumference: 45 cm Back Length: 35 cm Suggested Weight Range: 3.5-5 kg (7-10 jin is approximately 3.5-5 kg)
•Size: XL (Extra Large) Chest Circumference: 50 cm Back Length: 40 cm Suggested Weight Range: 5.5-8 kg (11-16 jin is approximately 5.5-8 kg)