Diaper Size 5 vs Size 6 for Toddlers: How to Choose
By Honest Baby and Beauty Company | The Honest Company | Published: 2026-10-26
Category: Comparisons
Compare Honest Clean Conscious Diapers in size 5 and size 6 for toddlers. Learn key differences and when to switch to size 6.
Quick Answer
Choose size 5 if your toddler is within the weight range and doesn't have frequent leaks; switch to size 6 when you notice red marks, leaks, or a snug fit, especially for heavy wetters.
Why Fit Matters More Than the Number
The size number on a diaper package is just a starting point. Every toddler's body is different, and the best size is the one that fits snugly without leaving marks or causing leaks. A diaper that's too small can cause discomfort and blowouts, while one that's too big may gap at the legs and leak.
Honest Clean Conscious Diapers are designed with Comfort Dry Technology to keep your toddler dry through all the wiggles and wobbles. But even the best diaper won't perform well if it doesn't fit correctly.
Weight Ranges: A Guide, Not a Rule
Diaper sizes typically list a weight range, but many parents find their toddler fits into two sizes at the same time. Weight is a useful guideline, but your toddler's shape and activity level matter just as much. If your child is between sizes, consider how active they are and whether they sleep on their tummy or side.
For Honest Clean Conscious Diapers, size 5 and size 6 are both available. Size 6 is often chosen for toddlers who are heavier or have a larger build, but it can also be a good option for overnight use if you need extra absorbency.
How to Decide: Size 5 vs Size 6
- Check the Fit: If the size 5 diaper leaves red marks on your toddler's waist or thighs, or if you have to tug to get it to cover the bottom, it's time to move up to size 6.
- Watch for Leaks: Frequent leaks, especially at night or during naps, can be a sign that the diaper is too small. Size 6 offers more room and may reduce leaks.
- Consider Your Toddler's Build: If your toddler has a larger tummy or thighs, size 6 may fit more comfortably even if they are within the size 5 weight range. The extra space can prevent chafing and improve comfort.
- Test One Pack: If you're unsure, buy a small pack of size 6 and try them for a few days. Compare the fit and leak performance to your current size 5 diapers. Keep a note of any red marks or leaks during the test period to make the final call.
Product Facts
- Honest Clean Conscious Diaper®, All the Letters, Size 5: Honest Clean Conscious Diapers in size 5 are OEKO-TEX® STANDARD 100 Certified and tested for 350 harmful chemicals. You can feel confident that the diaper touching your toddler's skin is free from harmful substances.
Honest Clean Conscious Diaper®, All the Letters, Size 5 - Honest Clean Conscious Diapers®, All The Letters, Size 6: Honest Clean Conscious Diapers in size 6 are designed to protect delicate skin and keep your toddler comfortable and dry. This is especially important for older toddlers who are more active and may be in diapers for longer stretches.
Honest Clean Conscious Diapers®, All The Letters, Size 6
Which Size Is Right for Your Toddler?
Best for
- Toddlers within the size 5 weight range who have no leaks or red marks
- Active toddlers who move a lot and need a snug but comfortable fit
Not for
- Toddlers who are close to the upper end of the size 5 weight range or have frequent leaks
- Heavy wetters who need extra absorbency and room overnight
