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Knowing When to Size Up Your Baby's Diaper

May 1 2024
7 min read
Rascals Premium Diapers

When to Size up Diapers

Knowing when to size up diapers for your baby can go a long way in preventing leaks, keeping them comfy and making change-time easier.

In this article, we cover:

  • 5 Signs that indicate your baby is ready to size up in diapers
  • How to choose the right diaper size
  • What size is right for your baby based on their weight
  • An introduction to baby training pants
  • How to transition from baby diapers to training pants
  • How to make change-time easier with Rascals CoComelon Training Pants

5 Signs that your baby is ready to size up diapers:

Here’s a few signs that your baby is ready to size up their diapers:

1. Your baby’s diaper has started to leak

The wrong sized diaper is one of the more common reasons your baby’s diaper may begin to leak. The weight range of our diaper and training pant sizes overlap, meaning your baby may be ready for the next size up, even if they’re still within their current size range. Ensure you’ve got the right fit to avoid leaks by checking your baby’s weight against the Rascals Diaper Size Guide or Rascals Training Pants Size Guide

Learn more tips on How to Prevent Your Baby’s Diaper From Leaking.

2. Your baby is leaking through the night

Does the diaper hold throughout the day, but begin leaking throughout the night? This is another sign that your baby is ready to size up their diapers. Rascals Premium Diapers are made with Unique Hydrolock Core™ providing 12 hours of advanced leak protection[3] absorbing 25x its weight in liquid[2]. Say goodbye to leaking diapers, soiled onesies and washing your baby’s sheets every morning (you’re welcome!).

View our Size Guide to find the right size for your little one.

3. Your baby has red marks on their legs

4. The waistband is getting too snug

If the tabs can’t reach the front of the diaper to fasten in place, it’s time to size up! Our grip tabs are designed to sit comfortably on your baby’s hips. You can read more about finding the perfect Rascals fit in this article: how to prevent your baby’s diaper from leaking

5. Your baby is pulling off their diaper

Signs your little one is ready to try training pants is if they no longer lay still for diaper change or start pulling the tabs of their diaper off. If change-time is getting a little too playful, it could also be time to try Rascals Premium Training Pants.

How to Choose the Right Diaper Size:

Rascals Premium Diapers are made with a unique design and fit, so we recommend choosing a size based on your baby’s weight. Use our handy Size Guide so you can be sure your little rascal has the perfect leak-free fit.

Tip: If you’re between sizes, we recommend trying a smaller size first.

Size 1 diaper weight:

  • Rascals Size 1 diapers fit babies between 6-11 pounds. Our size 1 diapers fit most newborns.

Size 2 diaper weight:

  • Rascals Size 2 diapers fit babies between 9-18 pounds.

Size 3 diaper weight:

  • Rascals Size 3 diapers fit babies between 13-24 pounds.

Size 4 diaper weight:

  • Rascals Size 4 diapers fit babies between 22-33 pounds.

Size 5 diaper weight:

  • Rascals Size 5 diapers fit babies between 28-39 pounds.

Size 6 diaper weight:

  • Rascals Size 6 diapers fit babies between 33-44 pounds

Size 7 diaper weight:

  • Rascals Size 7 diapers fit babies 39 pounds and up

Still have questions? Reach out to our friendly Customer Love team to get their expert advice on finding the right diaper size and preventing those sneaky leaks.

What are Diaper Training Pants?

Diaper training pants are the next step up from diapers and the perfect option for little humans always on-the-move, or who are about to start potty training. Training pants allow your little one to take control, letting them pull the training pants up all by themselves.

Rascals CoComelon Training Pants are our quickest, easiest change for active little ones. Perfect for little humans starting to potty train and for making change-time easier, we’ve teamed up with our friends at CoComelon to bring you a fun, limited edition print featuring JJ & friends! Made with an UltraFlex 360™ Waistband, Easy On & Off Design and Quick-Change Features, Rascals Premium CoComelon Training Pants are available in sizes 2T-3T to 5T-6T.

When Should You Transition from Diapers to Training Pants?

While there aren’t any rules to when your little one should transition from diapers to training pants, there are some tell-tale signs to when your little one is ready to try their “big-kid” pants. Often, parents make the switch to diaper training pants around the time potty training starts. Sometimes though, your baby may be showing signs that they are ready for the switch before their potty adventures begin.

5 Signs your little human is ready to try training pants:

  1. They bring you their clean diaper or baby wipes to ask for a change.
  2. They can put on shorts or trousers by themselves most of the time without help.
  3. They prefer to “do it all by themself” or show frustration when you offer help.
  4. They are potty training already.
  5. They no longer want to lay down for diaper changes and fight against them.

How to Make Change-Time Easier with Rascals and CoComelon

We’ve teamed up with our friends at CoComelon to bring you a limited edition print for our Premium Diapers and Training Pants. Our Premium Training Pants are Our #1 Fit For Active Babies. Engineered with 6 Core Innovations for a high-performing pant:

  • UltraFlex 360™ Waistband

With 15+ pieces of elastic our UltraFlex 360™ Waistband offers our most comfortable fit for active babies.

  • Quick-Change Features

Made with easy-tear sides and a disposal tab for our quickest, easiest change!**

  • Easy On & Off Design

With our Easy On & Off Design, our training pants function just like underwear to help with the transition to potty training.

  • AirSpun™ Softness

Using AirSpun™ Technology our pants materials are hot-air bonded for a breathable, feather-soft feel that is gentle on skin.

  • Unique Hydrolock Core™

Our Hydrolock Core™ holds 25x its weight for 12 hours of advanced leak protection.^^

  • Zero Nasties

Clinically proven safe on sensitive skin, our pants materials are free from 100+ harmful substances.

Your little human is going to love change-time with JJ & friends. Ready to join the fun?

FAQs: When to Size up Diapers

Signs include red marks or indentations on your baby's skin, frequent leaks or blowouts, or difficulty fastening the diaper tabs securely.

It's essential to consider both factors. If your baby's current size isn't fitting comfortably despite being within the weight range, consider sizing up.

Yes, frequent leaks that were not typical before could be a sign that the diaper size is too small and needs to be increased.

If your baby is between sizes, opt for the larger size for better comfort and to prevent potential leaks or discomfort from tight diapers.

Sizing up too early might lead to more frequent leaks. It's essential to observe signs indicating discomfort or a need for a larger size.