What Are Active Absorbent Briefs? Disposable Underwear Absorbing Less Than 300mL [2026 Guide]

English translation of an article originally published in Japanese on May 27, 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 thin disposable products that combine briefs with an absorbent core. It covers products with manufacturer-rated absorbency below 300mL.

What are disposable briefs with a built-in absorbent core?

In this article, “absorbent briefs” means disposable products with an absorbent core attached to the garment and manufacturer-rated absorbency below 300mL. Products rated at exactly 300mL, washable reusable absorbent underwear, and pants designed only to hold pads are excluded.

Benefits of disposable briefs with a built-in absorbent core

Because the absorbent core is integrated into the garment, there is no separate pad to shift or bunch. However, gaps and leakage can still occur if the size or body fit is unsuitable. Check the fit at the waist and legs as well as ease of movement.

Current products within this category

Daio Paper | Natura Absorbent Briefs

Black disposable absorbent briefs with approximate absorbency of 150cc. The absorbent core is built into the garment, suitable for extended outings or situations where light urine leakage is a concern. The sides can also be torn open for removal after use.

Size	Waist	Approximate absorbency	Quantity
M～L	64～90cm	Approximately 150cc	7 pieces

Source: Daio Paper Natura Absorbent Briefs

Products scheduled for release on October 21, 2026

Daio Paper has announced nationwide release of two disposable absorbent underwear products rated at 140cc on October 21, 2026. As of October 3, 2026, they have not yet been released.