Size 5 Diapers: All the Letters Print Fit and Absorbency Guide
By The Honest Company: Honest Baby and Beauty Company | Published: 2026-11-01
Category: Buying Guides
A practical size 5 diapers buying guide for Honest Clean Conscious Diapers in the All the Letters print, covering fit signs, absorbency expectations, and when to move up.
Quick answer
Choose Honest Clean Conscious Diaper Size 5 in All the Letters when your toddler is outgrowing size 4 and needs a diaper that stays put through active play. It is a strong fit for daytime and overnight use if the waist and legs seal without gaps, but it is not the right pick if your child is still comfortably in size 4 or needs a larger size for a longer torso.
Why the All the Letters print matters less than the fit
The All the Letters print is a visual choice, not a performance upgrade. Every Honest Clean Conscious Diaper in this size uses the same Comfort Dry Technology and OEKO-TEX STANDARD 100 certification, so the print does not change absorbency or leak protection. Pick All the Letters because you like it, then focus your buying decision on waist and leg fit.
That said, print availability can affect when you buy. If All the Letters is the print you want, check stock before you commit to a full case, especially if your toddler is between sizes and you may need to move up soon.
What size 5 absorbency can and cannot handle
Honest describes size 5 as delivering up to 100% leak protection with Comfort Dry Technology, which is the same claim made across the Clean Conscious line. In practice, that means the diaper is built to handle typical toddler wetting, but no diaper is unlimited. If your child consistently soaks through before the next change, the issue is usually fit or change frequency, not a need for a different print.
Overnight use is the common exception. A size 5 that works all day may still leak at night if your toddler drinks a lot before bed or sleeps long stretches. Try a fresh diaper right before sleep and check that the leg cuffs are fully pulled out before deciding the size is wrong.
The trade-off: sizing up too early
Moving to size 5 before your toddler is ready can create gaps at the legs and waist, which leads to more leaks than staying in size 4. A diaper that looks roomy is not automatically more comfortable. Use the decision rules below to confirm the move rather than sizing up on weight alone.
The opposite trade-off is waiting too long. If you see red marks from a snug waist or the diaper regularly leaves residue on skin, the current size is likely too tight, even if the weight range still seems to apply.
Decision rules for buying size 5
- Move to size 5 when: You see frequent red marks at the waist or thighs, the tabs no longer reach the landing zone comfortably, or leaks happen at the legs even with the cuffs pulled out. These are fit signals, not just weight signals. Check the waist and leg seals after every change for a full day before committing to a case.
- Stay in size 4 when: The diaper still fastens with room to spare, there are no red marks, and leaks are rare. A slightly larger diaper will not improve absorbency if the current size already seals well.
- Choose All the Letters when: You want this specific print and it is in stock in size 5. The print does not change fit or absorbency, so do not switch prints expecting a performance difference.
- Reassess overnight separately: If daytime is dry but nights leak, first try a fresh diaper at bedtime and confirm the cuffs are out. If leaks continue, consider whether the size is genuinely too small or whether change timing needs adjusting.
Product facts
- Honest Clean Conscious Diaper®, All the Letters, Size 5: Honest Clean Conscious Diaper, All the Letters, Size 5 is OEKO-TEX STANDARD 100 certified and third-party tested for 350 harmful chemicals. If sensitive skin or chemical exposure is a concern, this certification gives you a documented safety checkpoint beyond the print.
Honest Clean Conscious Diaper®, All the Letters, Size 5
Who size 5 All the Letters is for
Best for
- Toddlers who have outgrown size 4 and show fit signs like red marks or leg leaks
- Parents who want a certified diaper in a specific print for daytime and overnight use
Not for
- Children still comfortable in size 4 with no leak or fit issues
- Toddlers who need a larger size because of a longer torso or repeated overnight leaks despite a correct seal
