Thermos Co., Ltd. (Headquarters: Minato-ku, Tokyo; President: Yuji Kataoka), a global vacuum flask company proposing comfortable and environmentally friendly lifestyles for people and society, held the final 'My Bottle Promotion Project' of the season on April 26, 2026, and has now released its activity results.
Alvark Tokyo and our company have signed a Gold Partner agreement and are working to reduce environmental impact through the 'My Bottle Promotion Project.' For the 2025-26 season, we continue to implement initiatives to reduce plastic (PET bottle) waste at game venues. Furthermore, starting from the same season, we have fully introduced the 'Drink Container Reuse Service' at the Thermos booth within the home game venue.
Alvark Tokyo x Thermos 2025-26 Season Initiatives:
① Introduction of 'Drink Container Reuse Service'
② Continuation of 'My Bottle Promotion Project'
③ Installation of 'THERMOS Seats' offering unlimited drinks with vacuum insulated tumblers during games
④ Collection of 'Used Stainless Steel Vacuum Flasks' at the Thermos booth in the home game venue
① Full Implementation of 'Drink Container Reuse Service'
Towards the realization of a sustainable next-generation arena, this service was fully introduced at the new Alvark Tokyo home arena (TOYOTA ARENA TOKYO), which opened in October 2025. The 'Drink Container Reuse Service' aims to reduce the consumption of disposable drink containers at permanent food and beverage outlets within the arena.
We have replaced disposable containers with reusable 'vacuum insulated tumblers' and established a container circulation system. This season, we offered free rentals of reusable tumblers limited to 250 per game and provided discounts on drinks for users.
Over 30 home games, we successfully reduced the use of disposable drink containers by approximately 3,100 cups in total, with approximately 1,800 individuals using the service.
② Continuation of 'My Bottle Promotion Project'
- Number of participants in booth lottery: 7,677 people with their own bottles / 5,532 SNS posts
- Average waste amount of cans and PET bottles per game: Approximately 109 kg
- Average waste amount of cans and PET bottles per attendee: Approximately 13 g
③ 'THERMOS Seats' Offer Unlimited Drinks with Vacuum Insulated Tumblers
To reduce disposable drink container waste, we installed 'THERMOS Seats,' a special seating plan offering unlimited drinks with 'vacuum insulated tumblers.' These seats were sold for all 30 games, contributing to a reduction of approximately 1,350 cups of disposable drink containers.
④ Collection of 'Used Stainless Steel Vacuum Flasks'
Aiming for the recycling of stainless steel vacuum flasks, we collected 'used stainless steel vacuum flasks' at home games. The collected products undergo processing such as crushing and sorting, and are reused as recycled material for various products.
Total collected weight: 93.5 kg
*対象: 30 Alvark home games
We sincerely thank everyone who cooperated with the 'My Bottle Promotion Project' and 'Drink Container Reuse Service' for the 2025-26 season. Next season, together with Alvark Tokyo, we will continue to aim for the reduction of plastic (PET bottle) waste through the use of personal bottles that allow enjoyment of sports viewing with beverages at the optimal temperature.
■ Our Initiatives with Professional Basketball Club Alvark Tokyo
Since 2021, Alvark Tokyo and Thermos have signed an 'SDGs Partner' agreement. We promote various initiatives at Alvark Tokyo's home games, including the 'My Bottle Promotion Project' encouraging the use of personal bottles during games, the installation of special 'THERMOS Seats' offering drinks in vacuum insulated mugs, and measures to reduce disposable containers at home game venues.
【Sustainability Activities】
We advocate the sustainability theme of 'Thermos: Kind to People and the Environment.' While delivering products and services that lead to richer and more comfortable lives, we consider it our important mission to work towards reducing the burden on the global environment and are engaged in sustainability activities.
For details, please check the official Thermos website:
https://www.thermos.jp/sustainability/
【Thermos Brand】
Born in Germany in 1904. Thermos was the first in the world to commercialize a glass vacuum flask, and in 1978, with Japanese technological prowess, created the world's first 'high-vacuum stainless steel vacuum flask,' becoming the world's largest vacuum flask brand. As a pioneer in vacuum flasks, it is loved in over 120 countries worldwide.
https://www.thermos.jp/company/history/
【Thermos Co., Ltd.】
As a global vacuum flask company, Thermos Co., Ltd. offers a wide lineup including portable mugs and tumblers with stainless steel vacuum insulation, soup jars, and cookware such as frying pans. Through various technologies including insulation technology and creativity, we propose lifestyles that are comfortable for people and society, and gentle on the environment.
https://www.thermos.jp/
*Thermos Co., Ltd. is a member of the Nippon Sanso Holdings Corporation group.