Paper textile, not a disposable slipper

SASAWASHI lists the WSP11 body as 100% paper textile and the sole as artificial leather, with Japanese manufacture. The brand’s textile combines washi with kumazasa plant material; French retailer Bijo also describes that construction. Read the component breakdown carefully. A paper-based upper does not mean every part of the shoe is plant-based, and an unfamiliar fibre name is not enough to establish environmental superiority over a cotton alternative.

Decide what comfort means to you

The maker positions these room shoes around moisture absorption and a light feel. Those are manufacturer descriptions, not results from our own wear trial. When comparing a soft cotton slipper, ask what you actually want underfoot: a textile sensation, a padded interior or a substantial sole. Cotton slippers vary widely in lining and padding, so fibre alone will not settle the question. An in-person comparison is particularly useful when touch is the main reason for buying.

A real discrepancy in the size charts

The two official shops do not publish identical ranges. For example, the Japanese page lists L for 24–26.5 cm, while the English shop lists L for 25–27 cm. Do not silently convert that letter into your usual European shoe size. Give your foot measurement to the seller and ask which chart applies to its stock. Mention whether you plan to wear socks. A clear answer and a workable return process are more valuable than guessing.

Keep the intended use indoors

We would assess these as room shoes for ordinary indoor use. The published artificial-leather sole specification does not establish waterproofing, certified slip resistance, outdoor durability or structured arch support. If one of those is essential, choose a product that documents it. A comfortable-looking silhouette is not evidence. Likewise, we have not independently verified the antibacterial and deodorising claims appearing in brand and retailer descriptions, so they are not the basis of our recommendation.

Washing is part of ownership

The Japanese maker allows machine washing in a net, with neutral detergent and no bleach or tumble drying. Bijo provides corresponding care advice. Check the label on the exact pair and allow enough time for it to dry before wearing again. Consider whether you need another pair during washing. Buying from a French shop may make fit questions easier to resolve, but confirm the WSP11 reference rather than assuming every SASAWASHI slipper is identical.

A MOMENT BEFORE CHECKOUT

Worth a closer look

  • Ask the seller to confirm WSP11 and its applicable size chart.
  • Measure both feet and mention your intended socks.
  • Choose by lining, padding and sole as well as fibre.
  • Check care instructions and the return process before ordering.

Skip this purchase if you require verified grip, structured support or an outdoor sole. If you love your current cotton slippers, the unusual material alone is not a compelling reason to replace them.

FOUND IN FRANCE

Where to buy

Bijo; ParisWSP11 · Beige or grey · Sizes S to LL · Paris shop

Purchase links checked on 12 September 2026. Stock can change: check colours, sizes and delivery charges with the retailer.

Non-affiliate links: the journal receives no commission.

Check the details

This guide draws on published maker and retailer information, consulted on 12 September 2026.

  1. SASAWASHI Japan — WSP11, sizing, materials and care ↗
  2. SASAWASHI English shop — Room Shoes, materials and alternative size chart ↗
  3. Bijo; Paris — SASAWASHI slippers, French retail description and care ↗

Product photograph : SASAWASHI.

These links do not earn commission. Confirm the model, delivery to France and complete total with the seller.