Size | Weight (kg) (lb) | Height | Typical Size

Size 0 | 3-4.5kg | 6-10lbs | 50-56cm | Newborn

Size 1 | 4.5-7 kg | 10-15 lbs | 56-62cm | 0-3m

Size 2 | 7-9 kg | 15-20lbs | 62 - 68cm | 3-6m

Size 3 | 9-10 kg | 20-22lbs | 68-74cm | 6-9m

Size 4 | 10-11 kg | 22-24lbs | 74-80cm | 9-12m

Size 5 | 11-12.5kg | 24-27lbs | 80-86cm | 12-18m

Size 6 | 12.5 kg+ | 27+ lbs | 86-92cm | 18-24m