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Moving up in Size


We offer weight guidelines to help you anticipate when your baby may need to move up in size, but the best indication that the time is right is your own gut instinct. If you begin to experience leaks and you’ve exhausted all the troubleshooting tips, it might be time. If you begin to see deep red marks on baby’s skin, marks that indicate the gPants are too tight and you have no room left to expand on the adjustable waistband, it is likely time. You can refer to the size chart below for our general weight guidelines.

Diaper Sizing Guide

for our reusable gPants

  • Newborn - for brand new babies 6 - 10 lbs (2-4 kg)
  • Small - for babies 8 - 14 lbs (3-7 kg)
  • Medium - for babies 13 - 28 lbs (5-13 kg)
  • Large - for babies 22 - 36 lbs (10-16 kg)
  • Extra Large - for babies 34 + lbs (15+ kg)

Most babies will wear the size medium longer than the other sizes. And some babies will move up to a size large between 8 and 10 months only to come back down to a medium when baby’s mobility increases. And many babies will be done with diapers completely before the extra large is required. Babies come in all shapes and sizes, so these are guidelines, not hard and fast rules, based on an enormous amount of fit testing and customer feedback. If you have any hesitation about what size will best fit your baby, please contact us. We’d love to learn more about your little one and make sure they get the most comfortable fit possible.


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get your disposable inserts delivered, automagically.

With the gNappies autoship program, you get our disposable inserts delivered to your door in the quantity you want, at the frequency you want, saving 10% every time.

here's how to set up autoship.

  1. Choose a size of disposable inserts.
  2. Select the button next to 'Autoship' and choose your frequency.
  3. Add to cart. You're done!

So now you're set. You'll get your first order right away. And then you'll get your next order when it's scheduled. Your card will be charged when each subsequent order is automagically placed.

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