Keep Convenience Store Ice Frozen Longer! LOGOS Launches Two New Sizes in 'Sub-Zero Keep Cylinder' Series

LOGOS, an outdoor brand operated by Logos Corporation Ltd. (Headquarters: Suminoe-ku, Osaka City; President & CEO: Shigeki Shibata), announces the launch of two new models in its 'Keep Cylinder' series—'Sub-Zero Keep Cylinder ChilShort' (compact model) and 'Sub-Zero Keep Cylinder IceCore – Fits Convenience Store Ice as Is' (large-capacity model)—starting Thursday, June 25, 2026.

[Sub-Zero Keep Cylinder ChilShort] https://www.logos.ne.jp/products/info/11900

[Sub-Zero Keep Cylinder IceCore – Fits Convenience Store Ice as Is] https://www.logos.ne.jp/products/info/11899

These new items are the latest additions to the 'Keep Cylinder' series: the compact 'Sub-Zero Keep Cylinder ChilShort' and the large-capacity 'Sub-Zero Keep Cylinder IceCore – Fits Convenience Store Ice as Is'.

LOGOS's Keep Cylinder bottles feature vacuum insulation extending to the lid, minimizing heat intrusion from all directions and delivering exceptional cooling and heat retention. The copper plating on the inner wall further enhances thermal performance. Made entirely of stainless steel, the bottles are durable, rust-resistant, and prevent odor transfer even when storing coffee or tea. The wide-mouth design also makes cleaning easy. Ideal not only for keeping beverages cool or hot but also for transporting ice, frozen fruits, or frozen towels.

The 'Sub-Zero Keep Cylinder ChilShort' is a compact, tumbler-friendly model with a capacity of approximately 440ml—perfect for a 200g convenience store ice pack. It maintains temperatures below 9°C for about 6 hours. With the lid removed, it can also serve as a holder for canned or PET bottles. Recommended for commuting, school, desk work, and outdoor activities.

The 'Sub-Zero Keep Cylinder IceCore – Fits Convenience Store Ice as Is' offers a large capacity of approximately 2.3L, capable of holding a full 1.1kg convenience store ice pack. It boasts high cooling performance, retaining over 90% of ice even after 24 hours, making it a reliable companion for outdoor adventures, sports, and long leisure outings. Besides use as a beverage bottle, it can double as a beer can cooler or cold storage container. Its foldable handle ensures easy portability.

When used in combination with LOGOS's strongest cooling agent, the 'Sub-Zero Pack(R)' series, the cooling performance is further enhanced. By selecting the appropriate 'Sub-Zero Pack'—such as the 'Compact' or 'Gap Bar'—based on size, users can keep ice cream frozen from morning until night.

The product gained significant pre-launch attention, achieving a crowdfunding campaign success rate of 3516%, with total backing exceeding 10 million yen and over 1,000 supporters.

Experience the outstanding thermal insulation of these two new models—the 'Sub-Zero Keep Cylinder ChilShort' and 'Sub-Zero Keep Cylinder IceCore – Fits Convenience Store Ice as Is'—across everyday and outdoor scenarios.

· Sales Information

(Left) Sub-Zero Keep Cylinder IceCore – Fits Convenience Store Ice as Is (Right) Sub-Zero Keep Cylinder ChilShort

The latest additions to the 'Keep Cylinder' series: the compact 'Sub-Zero Keep Cylinder ChilShort' and the large-capacity 'Sub-Zero Keep Cylinder IceCore – Fits Convenience Store Ice as Is'.

Gained high pre-launch attention through a crowdfunding campaign, achieving a 3516% funding rate, over 10 million yen in total support, and more than 1,000 backers.

(Left) Fits frozen towels (Center) Compatible with frozen fruits (Right) Wide-mouth design for easy cleaning

Equipped with full vacuum insulation including the lid, these bottles minimize heat intrusion and cold air leakage, delivering superior cooling and heat retention. The copper-plated inner wall further supports excellent thermal performance. Ideal not only for beverages but also for transporting ice, frozen fruits, and frozen towels. The all-stainless-steel body is durable, rust-resistant, and prevents odor transfer, while the wide-mouth design ensures easy cleaning.

'ChilShort'

Sub-Zero Keep Cylinder ChilShort

The 'Sub-Zero Keep Cylinder ChilShort' is a compact, tumbler-friendly model with a capacity of approximately 440ml—perfect for a 200g convenience store ice pack. It maintains temperatures below 9°C for about 6 hours and can be used as a holder for canned or PET bottles when the lid is removed. Recommended for commuting, school, desk work, and outdoor activities.

'IceCore – Fits Convenience Store Ice as Is'

Sub-Zero Keep Cylinder IceCore – Fits Convenience Store Ice as Is

The 'Sub-Zero Keep Cylinder IceCore – Fits Convenience Store Ice as Is' is a large-capacity model with approximately 2.3L, perfectly fitting a 1.1kg convenience store ice pack. It maintains over 90% of ice after 24 hours, making it ideal for outdoor activities, sports, and long leisure trips. Can be used as a beverage bottle, beer can cooler, or cold storage container. Features a foldable handle for easy transport.

When used with LOGOS's strongest cooling agent, the 'Sub-Zero Pack(R)' series, cooling performance is further enhanced. By using size-appropriate 'Sub-Zero Packs' such as the 'Compact' or 'Gap Bar', users can keep ice cream frozen from morning until night.

Product Name: Sub-Zero Keep Cylinder ChilShort

Price: ¥4,785 (tax included)

Total Weight: approx. 280g

Dimensions: approx. Diameter 8 × Height 17cm

Capacity: approx. 440ml

Heat Retention: 56°C (6 hours)

Cooling Performance: 9°C (6 hours)

Main Materials: Stainless steel, silicone

Product Name: Sub-Zero Keep Cylinder IceCore – Fits Convenience Store Ice as Is

Price: ¥8,800 (tax included)

Total Weight: approx. 910g

Dimensions: approx. W14 × D12 × H31.5cm

Capacity: approx. 2.3L

Heat Retention: 83°C (6 hours)

Cooling Performance: 6°C (6 hours)

Main Materials: Stainless steel, polypropylene, silicone