FLET Tumbler Sale
2026-08-06 02:47:16

Limited Time Sale for FLET Tumblers Linked to Japan's Heat Waves

A Cool Offer from FLET Tumbler



In a unique marketing twist, TRNOVR, the company behind the innovative FLET Tumbler, has announced a special promotion dubbed the "Heat Wave Limited Sale." Running from August 5 at 18:00 to August 11, this sale aligns with Japan’s weather forecast—if any part of the country experiences a heat wave, the sale will take place.

You might be enjoying a cool breeze in your city, but as long as somewhere in Japan records a scorching day, you qualify for the sale. This innovative concept encourages fans to check the weather and is designed to heighten awareness of the changing climate, merging practicality with a fun shopping experience.

FLET Tumbler: A Background


The FLET Tumbler has gained considerable attention since its launch, successfully raising 7.16 million yen from over 1,026 backers on Makuake, a leading Japanese crowdfunding platform. Its popularity was further bolstered after being featured on Fuji TV’s morning show, Mezamashi TV.

Design Meets Functionality


The FLET Tumbler showcases a sleek design, available in navy, and boasts a vacuum-sealed double-wall structure made from food-grade 304 stainless steel. Unique to the tumbler is the ice stick that’s placed within it. Just freeze the stick overnight (4 to 8 hours) and use it to keep your drinks cool without diluting them.

This innovative tumbler not only maintains the cold temperature of beverages for up to 24 hours but also brings beverages to the perfect drinking temperature within 10 minutes. Whether you forget to cool your beer or need to keep your iced coffee chilled all day, FLET has you covered. Not only does it excel with cold drinks, but it also retains heat, keeping hot beverages warm for up to 5 hours.

Unmatched Cooling Power


The secret behind the FLET Tumbler's efficiency lies in the ice sticks. By avoiding the use of traditional ice, it prevents the dilution of drinks, ensuring that each sip is just as flavorful as the first. The internal structure, designed to hold beverages securely, ensures that leaks are a thing of the past, allowing users to enjoy peace of mind along with their drinks.

Versatile Usage Scenarios


FLET Tumblers shine in various everyday settings:
  • - Office: Designed to resist tipping and minimize condensation, making it the ideal office companion.
  • - Outdoor Activities: Made from durable stainless steel, they are perfect for holding sports drinks during outdoor work in the summer sun.
  • - Break Time: Whether it’s morning coffee or afternoon iced water, your drink will stay cold all day.
  • - In the Car: Fits comfortably in your car’s drink holder, ensuring hydration while you drive.

Development Roots in Thailand


Notably, the FLET Tumbler was developed by a team in Thailand, a country known for its sweltering temperatures year-round. This expertise led to the creation of a tumbler that promises 24-hour cooling, aiming to provide refreshing drinks under any condition.

Special Promotions


Details of the limited sale include:
  • - Timeline: August 5 at 18:00 - August 11.
  • - Product: FLET Tumbler.
  • - Eligibility: Purchase on days when temperatures hit 35°C or above anywhere in Japan.
  • - Special Pricing: Enjoy a discount of 1,000 yen, bringing the price down from 8,800 yen to 7,800 yen.
  • - Bonus Offers: Customers will receive a replacement lid and, for the first 20 buyers, an extra ice stick along with a stick case. Additionally, users who register on the official LINE account can benefit from a maximum discount of 2,000 yen.

For more details, visit the special sale page here.

Specifications


  • - Weight: Body (355g) / With Stick (605g)
  • - Dimensions: Body (195mm x 90mm) / Stick (160mm x 40mm)
  • - Capacity: Body alone (750ml), with stick (500ml)
  • - Performance: Cooling for 24 hours / Heating for 5 hours
  • - Maintenance: Dishwasher safe (remove lid seal before washing).

With a determination to challenge norms such as “ice is a must” and “drinks inevitably warm over time”, TRNOVR continues to innovate, bringing convenience and unexpected surprises into everyday life. They are committed to delivering ideas that elevate living standards and enchant consumers worldwide.


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Topics Consumer Products & Retail)

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