How to choose period underwear

― Periods, Light Bladder Leakage, and Daily Wear: How to Find the Right Pair for You ―

Absorbent underwear is a new option that serves as both menstrual hygiene product and underwear.

Although it has become more widespread in Japan in recent years, many people say, "There are too many types to choose from," or "I don't know which one to pick."

This article explains how to choose absorbent underwear that suits you, by purpose (e.g., for periods, light bladder leakage, or daily wear) and by function.

What exactly is absorbent underwear?

Absorbent underwear is designed to absorb menstrual flow or light bladder leakage.

  • ・Waterproof layer
  • ・Absorbent layer
  • ・Anti-bacterial and deodorizing treatment

Some types have these features built-in and can be used without pads, while others are designed to be used in conjunction with pads, menstrual cups, etc.
*Functions and absorbency vary by product.

First, choose by "purpose"

① For period use

  • ・Always check the absorbency (e.g., compatible with ◯ml)
  • ・Choose different pairs for heavy and light days
  • ・On days when you sit for long periods, choose a type with a wide waterproof area

The amount of liquid it can absorb is a particularly important factor. If you have a heavy flow, consider night-use or heavy-day options, or using them in combination with pads.

② For light bladder leakage

  • ・Thin types are recommended
  • ・Check for deodorizing features
  • ・Prioritize a snug fit in the crotch area

For everyday use, designs that look no different from regular underwear are comfortable. They make it easier to incorporate them into your daily life, whether you're out or at work, as if they were your usual underwear.

③ For sports and going out

  • ・Quick-drying
  • ・Breathable
  • ・Snug fit

If ease of movement is a priority, choose absorbent underwear made from stretchy material or designed to prevent shifting.

Next, choose by "absorbency"

Absorbent underwear varies in the amount it can hold. When choosing for period use, it's crucial to check the absorbency.

〜20ml Light days/discharge
20〜40ml Regular days
40ml or more Heavy days/night use

Many people don't know their menstrual flow volume, but choosing absorbent underwear is also about getting to know your body.

"Material" and "comfort" are also important

Since you wear them every day, choosing the right material is very important.

  • ・Organic cotton
  • ・Moisture-wicking and quick-drying material
  • ・Flat seam design

If you tend to feel damp, prioritizing breathability and quick-drying properties will make them more comfortable to use.

Common mistakes

  • ・Buying without checking the absorbency
  • ・Choosing too small a size
  • ・Not considering slow drying environments

Since absorbent underwear is washed and reused, "quick-drying" is also a surprisingly important point. If you want to use them daily, it's recommended to rotate multiple pairs.

Absorbent underwear is not for "endurance"

Absorbent underwear is not meant for enduring periods or light bladder leakage.

It's about:

  • ・Accepting your body
  • ・Moving with confidence
  • ・Living your daily life with ease

Absorbent underwear is an option that doesn't separate women's health as "special." It's a choice that fits into everyday life.

Summary

Here are four key points for choosing absorbent underwear:

  • ・Choose by purpose
  • ・Choose by absorbency
  • ・Choose by material
  • ・Choose a size that fits snugly

Having just one pair significantly expands your options, whether it's for your period or days when you're concerned about light bladder leakage.