Tokyo Soir Launches Glass Accessories That Can Be Used for a Long Time with Repairs; hitoiro SOIR × HARIO Collaboration Available from April 14th
Tokyo Soir's formal brand "hitoiro SOIR" is collaborating with accessory brand "HARIO Lampwork Factory" to release a new line of repairable glass accessories, promoting long-term use and ethical consumption. The collection, which combines semi-formal design with HARIO's traditional glassmaking techniques, will be available online from April 14th and in select stores starting April 23rd. This initiative reflects a growing consumer interest in sustainable and thoughtfully crafted products.
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- 📰 Published: April 14, 2026 at 20:00
- 🔍 Collected: April 14, 2026 at 11:31
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Tokyo Soir Co., Ltd. (Headquarters: Chuo-ku, Tokyo; President: Junichi Koizumi), a company that develops women's formal wear, will release a collaboration product between its formal brand "hitoiro SOIR" and the accessory brand "HARIO Lampwork Factory" for online sale starting Tuesday, April 14, 2026, and at a traveling pop-up store in stores from Thursday, April 23.
As a survey by the Consumer Affairs Agency shows that 57.5% of consumers are oriented towards ethical consumption, accessories that can be used for a long time while being repaired have been created. This is a new proposal that combines a semi-formal design with HARIO's traditional technology.
【Background】
Against the backdrop of growing environmental awareness, as countries transition to a circular society, the Ministry of the Environment in Japan is also promoting a circular economy, and the values of using and repairing products for a long time are spreading. In fact, a survey on ethical consumption by the Consumer Affairs Agency* also showed that the highest percentage of respondents (57.5%) answered that "if I were to buy something similar, I would want to choose one that can contribute to the environment and society," indicating a growing preference for "choosing environmentally friendly products."
At the same time, as a reaction to increased efficiency and mass production, there is a growing interest in manufacturing with regionality and a story, and the Ministry of Economy, Trade and Industry and the Small and Medium Enterprise Agency are promoting the enhancement and dissemination of the value of traditional crafts and the craft industry.
We are moving into an era where the act of "using things carefully for a long time" is itself considered valuable, sympathizing with the background, process, and creator's thoughts embedded in the product.
*Consumer Affairs Agency, 2nd Consumer Life Consciousness Survey of Reiwa 7
N=5000 Survey period: Thursday, October 2 to Monday, October 6, Reiwa 7
【New Value from Tokyo Soir × HARIO】
Against the backdrop of this growing interest in ethical consumption and a circular society, the two companies' desire to propose the "value of long-term use" aligned, leading to this collaboration.
This collaboration product embodies circular manufacturing by offering repair services (for a fee) for damage to the glass parts or deterioration of the metal fittings, making it possible to use the product carefully for a long time.
The "heat-resistant glass" manufactured by HARIO is strong against heat and has excellent workability, enabling delicate and beautiful designs. It is lighter than other glass and is characterized by being less stressful to wear.
This product combines glass accessories created using the traditional "lampworking*" technique with the philosophy of formal wear that accompanies important life scenes. It is versatile for a wide range of occasions, from daily life to special events, and proposes a new value of being loved for a long time while being close to the time you think of people.
*A technique of heating and shaping glass rods or tubes with a burner flame.
【What is hitoiro SOIR?】
hitoiro SOIR is a brand that allows you to achieve your own style without being bound by the framework of formal wear, based on the concept of "the clothes I want to wear, even on special days, in my daily life." The brand name comes from two words: the single color black ("hito-iro") and fulfilling the style for each person's important day ("hito-iro"). With the comfort of high-quality materials and three-dimensional patterns unique to a formal wear manufacturer, it balances a sense of formality and relaxation, allowing you to enjoy a style with a "sense of ease".
【Sales Overview】
Tokyo Soir Online Store: Sales start from Tuesday, 4/14.
https://formal-message.com/shop/e/ehitoiro/
In conjunction with the release of this collaboration product, a special pop-up sale of HARIO original glass accessories will be held at the following four stores.
◆ Tokyu Department Store Kichijoji Store, 4th Floor Tokyo Soir: 4/23 (Thu) - 5/13 (Wed)
◆ Keikyu Department Store, 4th Floor Women's Formal Wear: 6/11 (Thu) - 6/24 (Wed)
◆ Daimaru Tokyo Store, 6th Floor Formal Salon: 7/8 (Wed) - 7/14 (Tue)
◆ Shizuoka Isetan, 3rd Floor Women's Formal Wear: 8/5 (Wed) - 8/18 (Tue)
Special site: https://www.soir.co.jp/hitoiro/
Instagram: @hitoiro_wear
hitoiro SOIR Dangling Glass Chain Earrings ¥13,200 (tax included)
hitoiro SOIR Linked Glass Hoop Earrings ¥14,300 (tax included)
【Comment from the hitoiro SOIR Designer】
Glass creates transparency through the refraction of light, and its expression changes depending on the viewing angle and attire. In line with the brand concept of "multi-occasion," I aimed for a design that is gorgeous yet not overly assertive, and that blends naturally into everyday life. In addition, to prevent the hard impression peculiar to glass from becoming too strong, we have utilized HARIO's technology to create a delicate and soft expression.
HARIO Lampwork Factory
A glass accessory brand started by HARIO, a heat-resistant glass manufacturer founded in 1921, to pass on the manual skills of its craftsmen. The accessories are handmade one by one at their workshop in Nihonbashi, Tokyo, and eight other locations throughout Japan. They offer accessories that breathe with the knowledge of over 100 years of glassmaking and the skilled techniques of craftsmen, creating a delicacy and clear brilliance that only HARIO can produce.
As a survey by the Consumer Affairs Agency shows that 57.5% of consumers are oriented towards ethical consumption, accessories that can be used for a long time while being repaired have been created. This is a new proposal that combines a semi-formal design with HARIO's traditional technology.
【Background】
Against the backdrop of growing environmental awareness, as countries transition to a circular society, the Ministry of the Environment in Japan is also promoting a circular economy, and the values of using and repairing products for a long time are spreading. In fact, a survey on ethical consumption by the Consumer Affairs Agency* also showed that the highest percentage of respondents (57.5%) answered that "if I were to buy something similar, I would want to choose one that can contribute to the environment and society," indicating a growing preference for "choosing environmentally friendly products."
At the same time, as a reaction to increased efficiency and mass production, there is a growing interest in manufacturing with regionality and a story, and the Ministry of Economy, Trade and Industry and the Small and Medium Enterprise Agency are promoting the enhancement and dissemination of the value of traditional crafts and the craft industry.
We are moving into an era where the act of "using things carefully for a long time" is itself considered valuable, sympathizing with the background, process, and creator's thoughts embedded in the product.
*Consumer Affairs Agency, 2nd Consumer Life Consciousness Survey of Reiwa 7
N=5000 Survey period: Thursday, October 2 to Monday, October 6, Reiwa 7
【New Value from Tokyo Soir × HARIO】
Against the backdrop of this growing interest in ethical consumption and a circular society, the two companies' desire to propose the "value of long-term use" aligned, leading to this collaboration.
This collaboration product embodies circular manufacturing by offering repair services (for a fee) for damage to the glass parts or deterioration of the metal fittings, making it possible to use the product carefully for a long time.
The "heat-resistant glass" manufactured by HARIO is strong against heat and has excellent workability, enabling delicate and beautiful designs. It is lighter than other glass and is characterized by being less stressful to wear.
This product combines glass accessories created using the traditional "lampworking*" technique with the philosophy of formal wear that accompanies important life scenes. It is versatile for a wide range of occasions, from daily life to special events, and proposes a new value of being loved for a long time while being close to the time you think of people.
*A technique of heating and shaping glass rods or tubes with a burner flame.
【What is hitoiro SOIR?】
hitoiro SOIR is a brand that allows you to achieve your own style without being bound by the framework of formal wear, based on the concept of "the clothes I want to wear, even on special days, in my daily life." The brand name comes from two words: the single color black ("hito-iro") and fulfilling the style for each person's important day ("hito-iro"). With the comfort of high-quality materials and three-dimensional patterns unique to a formal wear manufacturer, it balances a sense of formality and relaxation, allowing you to enjoy a style with a "sense of ease".
【Sales Overview】
Tokyo Soir Online Store: Sales start from Tuesday, 4/14.
https://formal-message.com/shop/e/ehitoiro/
In conjunction with the release of this collaboration product, a special pop-up sale of HARIO original glass accessories will be held at the following four stores.
◆ Tokyu Department Store Kichijoji Store, 4th Floor Tokyo Soir: 4/23 (Thu) - 5/13 (Wed)
◆ Keikyu Department Store, 4th Floor Women's Formal Wear: 6/11 (Thu) - 6/24 (Wed)
◆ Daimaru Tokyo Store, 6th Floor Formal Salon: 7/8 (Wed) - 7/14 (Tue)
◆ Shizuoka Isetan, 3rd Floor Women's Formal Wear: 8/5 (Wed) - 8/18 (Tue)
Special site: https://www.soir.co.jp/hitoiro/
Instagram: @hitoiro_wear
hitoiro SOIR Dangling Glass Chain Earrings ¥13,200 (tax included)
hitoiro SOIR Linked Glass Hoop Earrings ¥14,300 (tax included)
【Comment from the hitoiro SOIR Designer】
Glass creates transparency through the refraction of light, and its expression changes depending on the viewing angle and attire. In line with the brand concept of "multi-occasion," I aimed for a design that is gorgeous yet not overly assertive, and that blends naturally into everyday life. In addition, to prevent the hard impression peculiar to glass from becoming too strong, we have utilized HARIO's technology to create a delicate and soft expression.
HARIO Lampwork Factory
A glass accessory brand started by HARIO, a heat-resistant glass manufacturer founded in 1921, to pass on the manual skills of its craftsmen. The accessories are handmade one by one at their workshop in Nihonbashi, Tokyo, and eight other locations throughout Japan. They offer accessories that breathe with the knowledge of over 100 years of glassmaking and the skilled techniques of craftsmen, creating a delicacy and clear brilliance that only HARIO can produce.