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Best Size 4 Diapers

Last updated: 17 Jan 2023
Size 4 diapers are intended for toddlers between 22 and 37 pounds. On average, this is the weight of a two- or three-year-old child, though, of course, children’s weights vary widely depending on the individual, which is why diaper sizes are based on weight, not age. Because diapers are such a constant and long-lasting part of your baby’s life, they must check several boxes. They have to fit well, feel comfortable, be absorbent, and let them move around and explore the world around them. Luckily, you have lots of choices, many of which are made with all those factors in mind. In this article, we’ll cover some excellent options and discuss how to choose the best ones.
Keep Your Baby Comfortable and Clean
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Best Overall
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Special Channels Keep Moisture Off Skin
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Most Absorbent
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Thin and Breathable to Keep Babies Moving
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Most Flexible
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Sustainable Materials with Fun Prints
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Cutest Design
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Sooth Skin Without Chemical Irritants
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Best for Sensitive Skin
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Protect Your Baby’s Skin and the Planet
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Most Sustainable
Buy on Amazon
Show Contents
Our Favorite Diaper Size 4 Worth Considering in 2023
  • 1 Best Overall – Keep Your Baby Comfortable and Clean
  • 2 Most Absorbent – Special Channels Keep Moisture Off Skin
  • 3 Most Flexible – Thin and Breathable to Keep Babies Moving
  • 4 Cutest Design – Sustainable Materials with Fun Prints
  • 5 Best for Sensitive Skin – Sooth Skin Without Chemical Irritants
  • 6 Most Sustainable – Protect Your Baby’s Skin and the Planet

Our Favorite Diaper Size 4 Worth Considering in 2023

Best Overall – Keep Your Baby Comfortable and Clean

1
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As the name implies, these diapers are super soft and comfortable. They don’t compromise on functionality either; they have an absorbent liner that prevents leaks.

Pros

  • Soft and comfortable
  • Absorbent liner
  • Prevent leaks for 12 hours
  • Pocketed waistband
  • Secure
  • Change color when wet

Cons

  • Plasticky smell
  • Velcro gets stuck to clothes
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Most Absorbent – Special Channels Keep Moisture Off Skin

2
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Built with comfort in mind, these diapers are made of soft, breathable material with flexible sides to ensure full mobility. They feature built-in channels that absorb and lock up moisture and a wetness indicator to know when to change.

Pros

  • Soft and breathable
  • Flexible sides
  • Absorbent channels
  • Wetness indicator
  • Hypoallergenic

Cons

  • Chemical smell
  • Sometimes leak
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Most Flexible – Thin and Breathable to Keep Babies Moving

3
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These diapers provide up to 12 hours of leak protection and have a wetness indicator, so you know when to change them. Plus, with no perfumes, lotions, chlorine, parabens, or phthalates, you can be confident they’re safe.

Pros

  • 12 hours of protection
  • Wetness indicator
  • Flexible and breathable
  • Free of toxins and irritants

Cons

  • Sometimes leak
  • Plasticky feel on the outside
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Cutest Design – Sustainable Materials with Fun Prints

4
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This diaper design features a quilted liner and absorbent channels that take up moisture and keep it off your baby’s skin. They’re stuffed with organic, sustainably-harvested, plant-based materials.

Pros

  • Absorbent
  • Cute prints
  • Wetness indicator
  • Organic plant-based materials

Cons

  • Prints received aren’t always as ordered
  • Shed fuzz
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Best for Sensitive Skin – Sooth Skin Without Chemical Irritants

5
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These diapers are soft, hypoallergenic, and flexible, making them a great choice for babies and toddlers who are prone to diaper rashes. They include healthy and helpful aloe and vitamin E while leaving out chlorine, perfumes, latex, and dyes.

Pros

  • Soft and flexible
  • Hypoallergenic
  • No irritants or toxins
  • Includes aloe and vitamin E to soothe skin

Cons

  • Sometimes leak
  • Tabs are short
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Most Sustainable – Protect Your Baby’s Skin and the Planet

6
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The pulp inside these diapers is made from FSC Certified, sustainably-harvested, plant-based materials, so they’re good for the planet as well as your baby.

Pros

  • Sustainable plant-based pulp
  • Free of bleach, fragrances, and lotions
  • Absorbent for up to 12 hours
  • Breathable

Cons

  • Not absorbent enough for overnight
  • Sag when wet
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Best Diaper Size 4 Buying Guide

The difference between the right diaper and the wrong diaper can greatly impact how comfortable and mobile your baby is. So when buying your next pack of diapers, make an informed choice by considering these factors.

  • Absorbency: This is one of the most important factors. Look for diapers designed to absorb and wick moisture, especially if they’ll need to last overnight.
  • Comfort: The softness of the material and the flexibility, especially around the legs, are some big determining factors in diaper comfort.
  • Breathability: Diapers need to balance their absorbency with breathability to keep babies dry and rash-free.
  • Additives: Chlorine, fragrances, latex, and lotions can cause rashes, especially for babies with sensitive skin.
  • Wetness Indicator: Some diapers change color when they need to be changed. If this would be helpful for you, look for this feature in your preferred brands.
  • Sustainability: Disposable diapers do add a lot of bulk to the landfill. Offset your footprint by looking for diapers made with sustainably-harvested pulp.

FAQ

Q: How Does Diaper Sizing Work?

A: Because all babies grow at different rates, diaper sizes are based on weight, not age. Though there is some variation in sizing between companies, most diaper sizes follow these weight guidelines:

  • Premie: <6 lbs
  • Newborn: <10 lbs
  • Size 1: 8-14 lbs
  • Size 2: 12-18 lbs
  • Size 3: 16-28 lbs
  • Size 4: 22-37 lbs
  • Size 5: >27 lbs
  • Size 6: >35 lbs
  • Size 7: >41 lbs
Use these numbers as a starting place and adjust as necessary, or when your baby outgrows their current size.

Q: When Does My Baby Need a Bigger Diaper Size?

A: Although diapers have some amount of built-in stretch, they will eventually need to switch to a larger size. You’ll know it’s time when the diaper gets harder to close with the tabs, and it no longer covers their bottoms completely. They may also start leaking more. If red marks appear where the diaper digs into their skin, this is also likely due to a diaper that’s too small. Keep your baby comfortable and dry with well-fitting diapers.

Kevin G. Harper
By Kevin G. Harper
Kevin G. Harper is a journalist based in Indianapolis, Indiana with 5 years of experience covering sports, outdoors, technology, and all of the internet trends. As a content creator and editor, he has gathered experience working with teams of editors on various social media, internet blogs, and eCommerce projects. In his free time, Kevin enjoys fishing, following college basketball and football, and trail running with his dog, Banjo. He also enjoys gaming with his friends, trying new restaurants, and reading on his balcony.
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