English translation of an article originally published in Japanese on May 17, 2021. Read the Japanese original (Japanese). Product information and dates refer to the original article. Images and manufacturer videos may contain Japanese.

This article introduces current pads for pull-on adult diapers, including products labeled “thin” or “slim” and products designed to fit neatly inside the diaper. Official manufacturer pages were checked on October 2, 2026, and widths, lengths and absorbency guides were compiled.
What are pads for pull-on adult diapers?
These pads are placed inside pull-on adult diapers. The pads introduced here have a folded-in-half shape that makes them easy to insert. Application methods vary by product, so check the package or manufacturer’s guidance before use.

Current products by manufacturer
“Ultra-thin,” “slim” and “neat fit” are each manufacturer’s descriptions; pad thickness cannot be compared from width and length alone. Decide when to change the pad according to urine volume and conditions of use.
Unicharm · Lifree
Stay-in-Place Reassurance Pad Exclusively for Thin Pull-On Adult Diapers, 2-Voids Absorbency
A thin, folded-in-half pad designed to avoid bulk when layered inside pull-on adult diapers. Front and rear anti-slip tapes work without peeling off paper and can be repositioned.

| Width | Length | Absorbency guide (voids) |
| 16cm | 45.5cm | 2 voids |
Source: Unicharm official website
Stay-in-Place Reassurance Pad Exclusively for Thin Pull-On Adult Diapers, 4-Voids Absorbency
A product in the same thin range for people needing more absorbency. It is wider and longer than the 2-void model.

| Width | Length | Absorbency guide (voids) |
| 18cm | 51cm | 4 voids |
Source: Unicharm official website
Kao · Relief
Extra-Reassuring Pad for Pull-On Adult Diapers, Daytime Non-Bulky Thin Pad, 2 Voids
A thin pad for pull-on adult diapers. Kao lists standing side-leak guards, wide fastening tape for securing the pad inside the diaper and full breathability as features.

| Width | Length | Absorbency guide (voids) |
| 13.5cm | 43.5cm | 2 voids |
Source: Kao official website
Daio Paper · Attento
Pad for Pull-On Adult Diapers, Underwear-Feel Pad
A slim, narrower shape designed to reduce bulk around the legs. Features a fully breathable backing and anti-slip tape.

| Width | Length | Absorbency guide (voids) |
| 12.5cm | 45cm | 2 voids |
Source: Daio Paper official website
Neat-Fit Pad for Pull-On Adult Diapers, 2-Voids Absorbency
A pad shaped to sit neatly around the legs inside pull-on adult diapers. Features repositionable anti-slip tape, leak-blocking standing guards and a fully breathable backing.

| Width | Length | Absorbency guide (voids) |
| 12.5cm | 45cm | 2 voids |
Source: Daio Paper official website
Kami Shoji · Elmore Ichiban
Slim Pad for Pull-On Adult Diapers
A “slim” pad for pull-on adult diapers. Features anti-slip tape at the front and rear, standing leak guards and a blue sheet that helps with positioning.

| Width | Length | Absorbency guide (voids) |
| 15cm | 43.5cm | Approximately 2 voids |
Source: Kami Shoji official website
Livedo Corporation · Refre
Easy Self-Application Pad for Pull-On Adult Diapers, 2-Voids Absorbency
Sized to fit neatly inside pull-on adult diapers. Front and rear adhesive tapes secure it to the diaper.

| Width | Length | Absorbency guide (voids) |
| 13.5cm | 43.5cm | 2 voids |
Source: Livedo Corporation official website
Hakujuji · Salva
Yawaraku Pad for Pull-On Adult Diapers, 2-Voids Absorbency
Designed to fit neatly inside Salva Yawaraku Pants. Anti-slip tapes at the front and rear secure the pad.

| Width | Length | Absorbency guide (voids) |
| 15cm | 46cm | 2 voids |
Source: Hakujuji official website
Nippon Paper Crecia Hadacare Acty
Incontinence Insert Pad for Pull-On Adult Diapers, Deodorizing and Antibacterial Plus
Features front and rear fastening tapes, standing side-leak guards and a fully breathable backing.

| Width | Length | Absorbency guide (voids) |
| 14.5cm | 43.5cm | 2 voids |
Source: Nippon Paper Crecia official website
Points to remember during use
Place one pad inside the pull-on adult diaper. Layering several pads can cause leaks, so do not stack them. Secure Lifree’s anti-slip tape to the diaper and avoid direct contact with the skin. For detailed positioning, see Unicharm’s instructions and Kao’s instructions for further guidance.
If you are looking for thin pull-on adult diapers themselves, see the article below.
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