If the nappy is too small, it can leak because there isn’t enough absorbency for the volume of pee or poo

For example, if your baby weighs 4 or 5 kilograms a Pampers size 2 nappy might be the ideal size, but if you have a baby who is long and slim you might need to stay with the smaller of the two possible sizes (Pampers size 1) for the best fit. If you don’t have scales at home or don’t feel confident about weighing your baby yourself, a health visitor at your local baby clinic will be happy to do it for you at any time.Once you find the best nappy size for your little one using our nappy size chart, choosing the right nappy will be a breeze. You may need to go up a size if you notice red marks on your baby’s tummy or thighs when you remove the nappy Beyond your baby reaching a weight that’s over what’s recommended for his or her current nappy size, here are some signs your baby might be ready for a different size nappy:

As you know, babies come in all sizes and shapes, so nappies fit a bit differently on every baby. To keep things simpler, Pampers nappy sizes are based on baby weight – not things like age or gender. If a nappy is too big, urine and poo may run out through gaps between the nappy and the skin before the nappy can absorb it. Just like you, Pampers put your baby’s safety first: Pampers Baby-Dry Nappy Pants are dermatologically tested and contain 0% EU perfume allergens (as regulated in the EU Cosmetics Regulation No 1223/2009). They are approved by the dermatologists of the Skin Health Alliance and tested and certified according to Standard 100 by Oekotex. When your baby starts to wriggle during changing time, Pampers Baby-Dry Nappy Pants are easy to change: with their flexible all-around waistband it’s just one pull to put on. Tear the sides for easy removal, roll up and secure with the tape for easy disposal. If you can’t comfortably fit two fingers under the waistband of the fastened nappy, it’s time for a bigger sizeIf your baby regularly gets nappy rash it may be because his or her nappies are too small and don’t hold the moisture away from the skin

What really sets these nappies apart is the new level of convenience. The wetness indicator, now even more visible, is a lifesaver for busy parents, making it easy to know when it's time for a change. The improved fit and flexibility mean they stay in place and move with my baby, providing an impeccable seal. To weigh your baby, you can use your normal bathroom scales. Take off your baby’s clothes and nappy, and then step on the scale while holding him or her.

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Pampers Premium Protection Upgraded nappies are simply extraordinary! These diapers have taken diapering to a whole new level, and I can't stop raving about them. The upgraded design offers unbeatable comfort, ensuring my baby stays content and dry throughout the day and night. The enhanced absorbency is like a superpower against leaks, providing worry-free protection. Most of the time, your baby's weight will fall neatly within the range of a certain nappy size, producing a good fit. In some cases, you might have a choice of two sizes, as the weight ranges can sometimes overlap. If the fastening tapes don’t reach the centre of the waistband, it’s time for a bigger size (if the tapes overlap, the nappy may be too big) After the nappy is fastened, you should be able to fit two fingers under the waistband. This means the nappy is fitted properly — not too snug, not too loose.