The easiest way to figure out which size your little one will need is by their weight. This is what we recommend - however, remember that every baby is different!
Nappies
Size 1: 2-5kg / 4-11lbs
Size 2: 4-8kg / 9-18lbs
Size 3: 6-10kg / 13-22lbs
Size 4: 9-14kg / 20-31lbs
Size 5: 11+kg / 24+lbs
Size 6: 14+kg / 31+lbs
Pants
Size 4: 9-15kg / 20-33lbs
Size 5: 12-17kg / 27-38lbs
Size 6: 15+kg / 33lbs+
Size 7: 17 kg+/37 lbs+
Size 8: 19 kg+/41 lbs+
To find out more about getting the right size nappy for your baby, have a read of our nappy size guide. If you’re still unsure, get in touch with our customer service team, who will be happy to send you some samples to try.
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