[Lighter than imagined] KACHIKA's new <Lightweight Series> achieves Amazon Bestseller status in approximately 15 days since launch
SynaBiz's private brand 'KACHIKA' announced that its 'Lightweight Series' backpacks and tote bags, launched on April 12, 2026, achieved Amazon Bestseller status in approximately 15 days (as of April 28, 2026). The series is praised for its lightweight design, storage capacity, and functionality.
📋 Article Processing Timeline
- 📰 Published: May 13, 2026 at 01:00
- 🔍 Collected: May 12, 2026 at 16:32
- 🤖 AI Analyzed: May 12, 2026 at 16:48 (16 min after Collected)
SynaBiz Co., Ltd. (Headquarters: Shinagawa-ku, Tokyo; Representative Director: Hiroaki Ishimaru; a wholly-owned subsidiary of Aucfan Co., Ltd.) announced that its private brand 'KACHIKA' (Kachika) has achieved Amazon Bestseller status with its 'Lightweight Series' backpacks and tote bags, launched on April 12, 2026 (as of April 28, 2026).
■ About the Lightweight Series
This product series was developed with the concept of "lightweight." In addition to its lightweight design, with a backpack weighing approximately 320g and a tote bag approximately 260g, it also boasts practical features for daily use, such as water repellency and deodorizing functions using Japanese-made deodorizing tape. Furthermore, it focuses not only on lightness but also on a simple yet elegant unisex design, making it easy to use in a wide range of situations, including commuting, school, and everyday use.
Both the backpack and tote bag achieved Amazon Bestseller status in approximately 15 days since their launch, gaining strong support from many users as bags that combine lightness, storage capacity, and functionality.
■ Lightweight Series "Backpack"
Approximately 320g. "Lightness that makes you forget you're carrying it."
This lightweight backpack is designed to reduce the burden of daily commuting, school, and outings. It supports A4 size and laptop storage, making it easy to use in business settings.
In addition to its water-repellent specifications, it features a multi-storage design with front, side, and internal pockets. It also includes deodorizing and antibacterial functions with Japanese-made deodorizing tape, making it useful in a wide range of situations such as commuting, school, travel, and as a mother's bag.
It is foldable, making it easy to carry as a sub-bag, and its simple design makes it suitable for both women and men.
■ Product Information
・Colors: Off-white / Gray / Black / Olive / Blue
・Size: Approximately 32×40×16cm
・Weight: Approximately 320g
・Unisex design
・Product page: https://amzn.asia/d/0c7musHa
■ Lightweight Series "Tote Bag"
Approximately 260g. A lightweight tote you'll want to use every day.
This tote bag features an ultra-lightweight design to reduce the burden on shoulders and arms. In addition to supporting A4 size, it includes internal pockets and a handle-fastening strap to prevent slipping when carried on the shoulder, making it easy for daily use.
It also uses water-repellent material, allowing for safe use even in sudden rain. It can be used in a wide range of situations, including commuting, school, as a mother's bag, or as a sub-bag during travel.
■ Product Information
・Colors: Black / Olive / Beige
・Size: W45×H30×D18cm
・Weight: Approximately 260g
・Unisex design
・Product page: https://amzn.asia/d/08iD7RZZ
About KACHIKA
"Changing value. Changing with value."
'KACHIKA' is a private brand born with the concept of "not creating the ordinary," aiming to deliver truly valuable products.
Today, the world is flooded with "seen-before products." Precisely because of this era, KACHIKA will only give form to "truly valuable things."
In your daily choices and preferences, we will gently accompany your values and deliver moments that perfectly "click."
About Aucfan Group
The Aucfan Group utilizes data and technology to develop distribution platforms that connect suppliers and demanders in domestic and international distribution markets.
As existing businesses, it operates the market price search service "Aucfan" and the BtoB transaction platform "NETSEA," building a stable revenue base.
Leveraging these foundations, it is currently promoting its own brands and the live commerce business "NETSEA MallLive" as growth drivers. It is working to establish a new distribution model centered on "D2X (Direct to X) Commerce," which provides end-to-end support from product planning to sales.
Moving forward, we will continue to strengthen existing foundations and expand growth areas simultaneously to advance the sophistication of our business structure.
SynaBiz Co., Ltd. Company Overview
・Representative: Hiroaki Ishimaru, Representative Director
・Established: July 2015
・Capital: 25 million yen *100% owned by Aucfan Co., Ltd. (listed on Tokyo Stock Exchange Growth)
・Location: Sumitomo Fudosan Osaki Twin Building East Tower 7F, 5-1-18 Kitashinagawa, Shinagawa-ku, Tokyo 141-0001
・URL: https://synabiz.co.jp/
■ About the Lightweight Series
This product series was developed with the concept of "lightweight." In addition to its lightweight design, with a backpack weighing approximately 320g and a tote bag approximately 260g, it also boasts practical features for daily use, such as water repellency and deodorizing functions using Japanese-made deodorizing tape. Furthermore, it focuses not only on lightness but also on a simple yet elegant unisex design, making it easy to use in a wide range of situations, including commuting, school, and everyday use.
Both the backpack and tote bag achieved Amazon Bestseller status in approximately 15 days since their launch, gaining strong support from many users as bags that combine lightness, storage capacity, and functionality.
■ Lightweight Series "Backpack"
Approximately 320g. "Lightness that makes you forget you're carrying it."
This lightweight backpack is designed to reduce the burden of daily commuting, school, and outings. It supports A4 size and laptop storage, making it easy to use in business settings.
In addition to its water-repellent specifications, it features a multi-storage design with front, side, and internal pockets. It also includes deodorizing and antibacterial functions with Japanese-made deodorizing tape, making it useful in a wide range of situations such as commuting, school, travel, and as a mother's bag.
It is foldable, making it easy to carry as a sub-bag, and its simple design makes it suitable for both women and men.
■ Product Information
・Colors: Off-white / Gray / Black / Olive / Blue
・Size: Approximately 32×40×16cm
・Weight: Approximately 320g
・Unisex design
・Product page: https://amzn.asia/d/0c7musHa
■ Lightweight Series "Tote Bag"
Approximately 260g. A lightweight tote you'll want to use every day.
This tote bag features an ultra-lightweight design to reduce the burden on shoulders and arms. In addition to supporting A4 size, it includes internal pockets and a handle-fastening strap to prevent slipping when carried on the shoulder, making it easy for daily use.
It also uses water-repellent material, allowing for safe use even in sudden rain. It can be used in a wide range of situations, including commuting, school, as a mother's bag, or as a sub-bag during travel.
■ Product Information
・Colors: Black / Olive / Beige
・Size: W45×H30×D18cm
・Weight: Approximately 260g
・Unisex design
・Product page: https://amzn.asia/d/08iD7RZZ
About KACHIKA
"Changing value. Changing with value."
'KACHIKA' is a private brand born with the concept of "not creating the ordinary," aiming to deliver truly valuable products.
Today, the world is flooded with "seen-before products." Precisely because of this era, KACHIKA will only give form to "truly valuable things."
In your daily choices and preferences, we will gently accompany your values and deliver moments that perfectly "click."
About Aucfan Group
The Aucfan Group utilizes data and technology to develop distribution platforms that connect suppliers and demanders in domestic and international distribution markets.
As existing businesses, it operates the market price search service "Aucfan" and the BtoB transaction platform "NETSEA," building a stable revenue base.
Leveraging these foundations, it is currently promoting its own brands and the live commerce business "NETSEA MallLive" as growth drivers. It is working to establish a new distribution model centered on "D2X (Direct to X) Commerce," which provides end-to-end support from product planning to sales.
Moving forward, we will continue to strengthen existing foundations and expand growth areas simultaneously to advance the sophistication of our business structure.
SynaBiz Co., Ltd. Company Overview
・Representative: Hiroaki Ishimaru, Representative Director
・Established: July 2015
・Capital: 25 million yen *100% owned by Aucfan Co., Ltd. (listed on Tokyo Stock Exchange Growth)
・Location: Sumitomo Fudosan Osaki Twin Building East Tower 7F, 5-1-18 Kitashinagawa, Shinagawa-ku, Tokyo 141-0001
・URL: https://synabiz.co.jp/