'KACHIKA' Comfort Born from Advanced Foaming Technology: 'Supercritical Fluid SlippersTM' Achieve Amazon Best-Seller Status

SynaBiz Co., Ltd. (Headquarters: Shinagawa-ku, Tokyo; CEO: Akihiro Ishimaru; a wholly-owned subsidiary of Aucfan Co., Ltd.) is pleased to announce that its private brand 'KACHIKA's 'Supercritical Fluid SlippersTM' have achieved Amazon Best-Seller status as of July 7, 2026. Furthermore, these slippers are now available at a special sale price on Amazon.co.jp as part of the Amazon Prime Day Early Access Sale, starting today, July 7, 2026 (Tue).

Light and Soft Comfort Achieved Through Supercritical Foaming Technology

'Supercritical Fluid SlippersTM' are room sandals that offer lightness, softness, and shock absorption thanks to supercritical foaming technology using CO2 and N2. The fine and uniform foam structure achieves a weight of approximately 69g and a soft cushioning that gently supports the soles of the feet.

Additionally, the integrated molding structure makes them resistant to peeling at the seams and deformation. With a simple design that easily blends into any interior, they are a unisex specification suitable for all genders.

<Key Features>

- Approximately 69g ultra-lightweight design

- Soft comfort from supercritical foaming technology

- Cushioning that softens impact on the soles of the feet

- Integrated molding structure resistant to peeling and deformation

- Easy to wash and suitable for daily use

- Unisex design suitable for all genders

Product Information

- Product Name: Supercritical Fluid SlippersTM

- Brand: KACHIKA

- Colors: Black, White - Sizes: 23.0-23.5cm / 24.0-24.5cm / 25.0-25.5cm / 26.0-26.5cm / 27.0-27.5cm / 28.0-28.5cm

- Sales Channel: Amazon.co.jp - Product Page: https://www.amazon.co.jp/dp/B0FJX96WC1

About 'KACHIKA'

-Changing Value. Changing with Value.-

'KACHIKA' was born with the concept of 'not creating the ordinary' and aims to deliver truly valuable items. In an era where 'products that look like they've been seen somewhere before' are abundant, KACHIKA gives form only to 'truly valuable things.' We aim to deliver moments where our products gently align with your values and fit perfectly ('kachitto' in Japanese) through your daily choices and preferences.

About the Aucfan Group

The Aucfan Group operates distribution platforms that connect suppliers and demanders in domestic and international distribution markets, utilizing data and technology. As existing businesses, we operate the market price search service 'Aucfan' and the BtoB transaction platform 'NETSEA,' building a stable revenue base. Leveraging this foundation, we are currently promoting our own brands and the live commerce business 'NETSEA Mall Live' as growth drivers. We are working to establish new distribution models centered on 'D2X (Direct to X) Commerce,' which supports everything from product planning to sales.

We will continue to strengthen our existing base and expand our growth areas simultaneously, aiming to enhance our business structure.

SynaBiz Co., Ltd. Company Overview

- Representative: Akihiro Ishimaru, Representative Director

- Established: July 2015

- Capital: 25 million yen *100% funded by Aucfan Co., Ltd. (listed on the Tokyo Stock Exchange Growth Market)

- Location: 7F, Sumitomo Fudosan Osaki Twin Building East Wing, 5-1-18 Kita-Shinagawa, Shinagawa-ku, Tokyo 141-0001

- URL: https://synabiz.co.jp/