Tiger Corporation, known for its heat-control technology, is expanding its one-push mug bottle lineup with two new additions: the Vacuum Insulated Bottle MKR-V035/V050/V060 and the Vacuum Insulated Bottle MTR-V075/V088, both launching on September 1, 2026.
The MKR-W series, launched in 2024 as Tiger's first one-push model with the らくらくキャップ — a cap that combines the seal and stopper into a single piece — has been well received by owners, who have noted that it has fewer parts and is easier to maintain thanks to being dishwasher-safe, that its simple design holds up well over long-term use, and that its light weight makes it less of a hassle to carry.
The new MKR-V and MTR-V models also adopt the らくらくキャップ and are dishwasher-safe for easy care, while Tiger's proprietary "spinning" processing technique (スピニング加工) gives the bottles a noticeably lighter feel.
Attention has also been paid to comfortable drinking, with careful design of details such as the shape and height of the mouthpiece. The MKR-V type has received 人間生活工学認証 certification from 一般社団法人人間生活工学研究センター, an organization focused on human-centered design.
Key Features
The bottles use the one-piece らくらくキャップ, which combines the seal and stopper, and they are dishwasher-safe.
1. A One-Push Mug Built for Easy Care
Careful design of the mouthpiece shape and height.
2. Comfortable to Drink From
A noticeably lighter feel.
3. A 夢重力 (むじゅうりょく) Bottle That's Easy to Carry

A One-Piece らくらくキャップ — and Dishwasher-Safe
1. A One-Push Mug Built for Easy Care
Tiger focused on ease of care so the bottle can be used comfortably every day.
The bottle uses the one-piece らくらくキャップ and is dishwasher-safe. The inside of the bottle is also finished with the Super Clean Plus (スーパークリーンPlus) coating, which resists stains and odors.
The One-Piece らくらくキャップ
Because the seal and stopper are combined into the らくらくキャップ, there's no need to remove and reattach the seal separately — removing the risk of forgetting it, attaching it incorrectly, or losing it. The mouthpiece is also removable, so it can be washed thoroughly and hygienically.

Dishwasher and Dryer Safe
The lid, mouthpiece, and bottle body can all go in the dishwasher and dryer.
*Please remove the lid and mouthpiece from the body before placing them in the dishwasher.

Super Clean Plus (スーパークリーンPlus) Resists Stains and Odors
The inside of the bottle is finished with the smooth, glossy Super Clean Plus coating.
It resists stains, odors, and rust, so it's fine to use with sports drinks that contain salt.
*Rinse with water soon after use as part of regular care.

2. Comfortable to Drink From
Tiger also focused on drinkability, carefully designing details such as the shape and height of the mouthpiece.
The MKR-V type has received 人間生活工学認証 certification from 一般社団法人人間生活工学研究センター.

Certified Features
- The open/close button is easy to press
- The lock mechanism is easy to understand and operate
- Less discomfort on the lips while drinking
- The mouthpiece shape fits the lips for easy drinking

3. A Lighter Feel
Tiger's proprietary spinning process (スピニング加工) thins the bottle's inner wall, reducing its overall weight.

Other Features
Vacuum Insulation for Reliable Heat and Cold Retention
The stainless steel double-wall vacuum construction keeps drinks at a good temperature for 6 hours or more — hot drinks stay hot, and cold drinks stay cold.
Product Pages

*Open price — no manufacturer's suggested retail price has been set.
*Actual capacity is the amount the bottle holds when the included stopper is in place.
*Heat retention is measured by filling the bottle with hot water (95°C ± 1°C) at a room temperature of 20°C ± 2°C, standing it upright, and recording the water temperature after 6 hours.
*Cold retention is measured the same way, using cold water (4°C ± 1°C).