High-Absorbency Pull-on Adult Diapers: 6 Manufacturers Compared in Japan [2026]

English edition of a Japanese guide by Hiroshi Yagi. Japanese original: first published May 12, 2021; updated October 7, 2026. Read the Japanese original (Japanese).

2026 comparison: higher-absorbency retail pull-on adult diapers

This guide compares pull-on adult diapers for longer use from 6 manufacturers, available through retail stores or the manufacturers’ official online stores in Japan at the source’s information check. The products covered have reference absorption counts of 5–8 voids. Product names, waist sizes and manufacturers’ displayed reference counts were checked on their official pages on October 2, 2026.

Absorption counts are reference values. The actual time between changes depends on urine volume, posture, body fit, whether stool is present and other factors.

Reading reference counts and choosing a product

Many manufacturers base a “number of voids” label on 150mL per reference void. This does not guarantee actual wearing time or a number of urinations without leakage. First check the waist size, then look for gaps around the legs and back.

Check urine volume and skin condition when changing the diaper. Choosing a higher-absorbency product alone is not a reason to extend the interval between changes excessively. If combining pull-on adult diapers with an incontinence insert pad, check the instructions for the specific product. For example, Daio Paper does not recommend using an insert pad with the 8-void reference absorption product described here. Source: Daio Paper official FAQ Japanese.

Products by manufacturer at the source’s information check

Product names below are English descriptions of Japanese-market labels, not verified official English product names. The linked official product pages are in Japanese.

Daio Paper — Attento

Overnight pull-on adult diapers for use without pads — 8-void reference absorption

This design uses 1 diaper without an insert pad for urine over a longer period. The manufacturer displays approximately 8 reference voids and approximately 1,200mL, based on 150mL per void. It is available in 2 sizes: M and L.

Source: Daio Paper official website Japanese

Unicharm — Lifree

Pull-on adult diapers for longer use without insert pads

The manufacturer displays approximately 7 reference voids (approximately 1,000mL). There are 4 sizes, from S to LL, selected by waist measurement.

Source: Unicharm official website Japanese

LiveDo Corporation — Refré

Overnight pull-on adult diapers — 1 diaper for the night

The manufacturer displays approximately 6 reference voids, based on 150mL per void. There are 2 sizes, ML and LL. The illustration shows the 2026 package used at the source’s information check.

Source: LiveDo Corporation official website Japanese

Kami Shoji — Ellemoi Ichiban

Thick pull-on adult diapers for reassuring protection

The manufacturer displays approximately 6 reference voids and approximately 900mL. There are 2 sizes: M–L and L–LL.

Source: Kami Shoji official website Japanese

Hakujuji — Salva

Soft-comfort pull-on adult diapers for longer use

The manufacturer displays approximately 5 reference voids. A wetness indicator can be checked from the outside as a guide to changing.

Source: Hakujuji official website Japanese

Kao — Relief

Pull-on adult diapers for easy raising and lowering and longer use — 5-void reference absorption

At the source’s information check, the product name described easy raising and lowering, longer use and a 5-void reference absorption count. The waist section opens out easily, and the diaper has finger pockets and alignment lines for positioning an insert pad.

Source: Kao official website Japanese

Summary

For the 6 products checked in the Japanese source, the manufacturers’ reference absorption counts range from 5 to 8 voids. Do not decide on the count alone: also consider the fit at the waist and legs, the movements of the person changing the diaper, and whether the product can be used with an insert pad. Specifications and packaging can change, so check the linked manufacturer pages for the latest information before buying.

Hiroshi Yagi

Absorption counts are reference values. Choose by checking actual urine volume, body fit and the situation in which the diaper will be used.