SOFY Period Shorts in Japan: Sizes, Changing and Travel Tips

Complete SOFY Odekake Koukan Shorts packages for S-M seven-pack and XL six-pack, with reminders to choose by hip size, open one side at a time, and distinguish absorption capacity from wearing time. Japan Drugstore Guides
Changing a shorts-shaped period pad in a small toilet cubicle can be awkward when you are wearing trousers, tights and shoes. SOFY’s Japanese おでかけ交換ショーツ (Odekake Koukan Shorts) have sides that open along perforations and fastening tabs that let you put on a fresh pair without fully removing those clothes. Before buying, check the exact name, hip measurements and changing method rather than relying on pack color.

IreneI’m Irene, a Taiwanese pharmacist working in a Japanese drugstore. This guide brings together the official sizing, changing and disposal directions to help you choose in store and prepare for a trip.

Three things to remember

  • Look for the full name おでかけ交換ショーツ. These are disposable menstrual pad-shorts with side-fastening tabs.
  • Choose by hip measurement, not waist measurement. There are three sizes, S-M, M-L and XL, and their pack counts differ.
  • “Up to 12 hours’ worth of absorption” is not a 12-hour changing schedule. The manufacturer says to change as appropriate for your menstrual flow.

How to identify the right SOFY product in Japan

Match ソフィ おでかけ交換ショーツ, then check 昼用 ショーツ型ナプキン (daytime shorts-shaped menstrual pad), the size and the pack count. The pack may also carry the 超熟睡 range name, but that alone is not specific enough. Other pad-shorts exist in the range; do not apply the side-fastening method below to a different product.

Official SOFY Odekake Koukan Shorts image: S-M seven-piece pack on the left and XL six-piece pack on the right, with grey shorts illustrated on pink packaging
Image: ユニ・チャーム株式会社 (Unicharm), via its August 31, 2026 PR TIMES release, shown in full. Left: S-M seven-piece pack. Right: XL six-piece pack. M-L is not pictured. This is a manufacturer product visual, not a hands-on photograph. Official sources are collected at the end.

The image shows pink outer packs with grey pad-shorts illustrated on them. Neither pink nor grey is enough to identify the product, and packaging can change. These are Japan-market products; the official shop lists the origin of all three packs below as China. Being sold in Japanese drugstores does not mean they are made in Japan.

Choose a size: hips first, then pack count and JAN

The hip ranges below come from SOFY’s current guide. Pack counts and JAN barcodes were checked against the matching official-shop listings. These are hip measurements, not waist measurements, and the letters should not be treated as equivalent to your usual clothing size.

S-M

Hips: 82–95cm

Seven per pack

JAN
4903111285785

M-L

Hips: 87–100cm

Seven per pack

JAN
4903111025657

XL

Hips: 97–105cm

Six per pack

JAN
4903111053247

The ranges overlap, so falling within two ranges does not establish which size will fit you better. Compare your hip measurement with the actual pack and check the fit when wearing it. The tabs allow adjustment, but do not replace choosing an appropriate size.

S-M and XL were added in Japan on September 15, 2026; M-L was already on sale. Older information also shows an M-L four-piece pack. Its official-shop page displayed “販売停止中です” (sales suspended) when checked, so it is not included as a current buying option here. That shop status does not establish that the manufacturer has discontinued it everywhere.

Replace the whole pair, not an absorbent insert

This product combines a menstrual pad with a shorts-shaped body. Opening its sides lets you put on a fresh pair without fully taking off trousers, tights or shoes. You still need a suitable place to change and must move your clothing enough to reach the fastening area. These are not washable period underwear, and there is no separate insert to replace while keeping the same body.

To put on a fresh pair, follow the official sequence: finish one side before starting the other.

  1. Open the fastening tab on one side first. Do not begin by opening both sides.
  2. Tear that side along its perforation. Pull the joined sides apart as shown on the pack.
  3. Wrap it around above your knee and fasten at the original alignment. Secure this side first.
  4. Repeat on the other side, then pull up to your waist. Check the position and fit, adjusting the tabs according to the pack directions.

Before packing it for the first time, read the directions on the outer pack and individual wrapper. Remembering “one side, then the other” makes the sequence clearer. The steps above summarize the official directions; use the illustrations on your purchased pack when changing.

Refastenable does not mean unlimited fastening strengthSOFY’s FAQ says the tabs can be refastened within the normal range of use. Excessive refastening at the same spot can make the nonwoven surface fuzzy and reduce its strength. Adjusting the tabs is for fit; after use, replace the whole item rather than treating worn pad-shorts as a fresh pair because the tabs still fasten.

Plan spare supplies and toilet stops together

Not having to remove trousers completely can reduce the changing steps, but it does not remove the need to change. The manufacturer’s “up to 12 hours’ worth” describes absorption, not a universal wearing time. Change as appropriate for your flow. Do not calculate your daily supply by assuming each pair will last 12 hours, or deliberately postpone toilet visits because of that claim.

Before leaving: complete these two checklists

① At the shelf: identify the pack

おでかけ交換 + 昼用Match hips, size and pack countShow the matching JAN if you need help

② In your bag: prepare to change

Bring spares for your own changing needsRead the method and plan toilet opportunitiesFold, wrap and dispose of the used item properly

Keep in mind: the 12-hour absorption claim is not a fixed changing interval. Each change replaces the whole pair of pad-shorts.
Original travel-planning diagram based on official product identification, changing and disposal information. Spare quantities and toilet planning are practical suggestions, not a manufacturer-guaranteed wearing duration.

Keep unused spares in their individual wrappers inside an easy-to-reach pouch. A separate bag for wrapped used items can help if a toilet has no suitable disposal bin: carry the item away and dispose of it according to local rules. This is packing advice, not a claim that a disposal bag is included with the product.

Disposal: keep the individual wrapper handy

  1. Fold with the soiled surface inward. Fold the whole used item.
  2. Roll from one side. Secure it with the tab on the opposite side.
  3. Wrap it in the individual wrapper and bin it. Use a suitable sanitary-waste bin and follow local disposal instructions. Do not flush it.

The official precautions advise consulting a doctor if the product does not suit your skin. If you are concerned about your menstrual flow or clots, SOFY’s guide recommends seeing a gynecologist. The absorption claim is not a way to assess whether a change in your menstrual bleeding needs attention.

Where to buy: check the exact size before the store

SOFY lists Japanese drugstores, supermarkets and online shops as sales channels, with a store-search link on its product guide. This does not mean every branch stocks all three sizes. Show a shop assistant the full Japanese name, size and JAN rather than asking only for SOFY night shorts. Check the current price, packaging and availability when buying.

Your buying and changing checklistFind おでかけ交換ショーツ, choose by hip measurement, and check the count: S-M seven / M-L seven / XL six. Read the changing method before you go, replace according to your flow, then wrap and bin the used item. The useful feature is less clothing to take off when changing, not a reason to extend the time between changes.

Sources and image credit

Checked November 11, 2026. This guide is based on manufacturer information, not a hands-on fit, absorption or leakage test. Specifications, packaging and sales status may change.

Primary official sources

Topic discovery

Japaholic’s Japanese everyday-products article (October 13, 2026) introduces this product through the problem of changing in public toilets. This guide adds official sizing, JANs, changing and disposal details. That media coverage is not used as sales, popularity or performance-test evidence.

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