[Overwhelming Response Exceeding Expectations!] Water-cooled Seat SPEEDER 'Shun-Rei' That Creates a Bathtub in the Car, Additional 720 Sets of 'Makuake Discount' Urgently Added Due to Sellouts Immediately After Makuake Launch

Mitsukin Shoji Co., Ltd. (Headquarters: Oita City, Oita Prefecture) started pre-sales of the Peltier water-cooled circulation seat SPEEDER 'Shun-Rei' on the support purchase service 'Makuake' from 8:00 AM on Friday, June 5, 2026. Due to access concentration far exceeding initial expectations, the prepared early bird discount rewards quickly ended or became limited. In response to this exceptional response and the enthusiastic requests from supporters, the company urgently announced the addition of 720 sets as 'Makuake Discount' to deliver a comfortable summer drive to more people.

Makuake project page

Buzz from pre-announcement, project achieves goal in just 3 minutes! Dominates weekend Makuake ranking

From the stage of 'pre-announcement (first unveiling)' started on Monday, June 1, this project had already generated significant buzz among car enthusiasts and gadget lovers. Once the full launch arrived on Friday, June 5, orders flooded in, achieving 100% of the funding goal in an astonishing 3 minutes from the start of public launch. The momentum continued through the weekend, reaching No.1 on Makuake's 'Notable Projects' ranking on Saturday, June 6. The continuous access concentration led to the immediate sellout of the prepared top rewards.

*No.1 in overall ranking as of June 6

Why is it so supported? Three innovations that make 'Shun-Rei' chosen

This product was developed to solve two major user complaints about conventional 'fan-type (air-blowing) seats' (limits of air blowing, incompatibility with seat structures).

1 Instant cooling without waiting for AC! Extreme cold sensation that 'stops sweat' as soon as you sit

Even in a blazing hot car, you don't have to wait for the air conditioner to work. A powerful 75W cooling semiconductor rapidly circulates cold water, providing overwhelming coldness beyond conventional fans, eliminating sweat stress the moment you sit.

2 Comfortable even after hours of driving! The power of water cooling supporting long-distance drivers

The cold water continuously removes heat from the back and buttocks in close contact with the seat, maintaining a cool feeling even during long drives. Whether on harsh long-distance drives in midsummer or business travel, you can focus on driving comfortably without being bothered by temperature changes.

3 Zero roughness, premium seat! Combining luxury feel and toughness with load capacity of 100kg

With the company's own water channel design, the uncomfortable feeling of tubes typical of water cooling is completely eliminated. It offers a high-quality sitting comfort that seamlessly blends into luxury cars, and with a waterproof back specification and sturdy design supporting up to 100kg, you can use it daily with confidence.

Still in time! Limited quantity plan information

The 'Super Super Early Bird, Super Early Bird, Early Bird' rewards have sold out immediately, but in response to the product's great response, we have urgently prepared an additional 720 sets. It is first-come, first-served, and will end as soon as the limited number is reached. Please check the project page early.

[Project Overview]

Project name: 'SPEEDER Shun-Rei Seat'

Representative product: Peltier cold water circulation seat 'Shun-Rei'

Project start date: June 5, 2026 (Friday) ~

Severe heat is expected again this summer. With the 'SPEEDER Shun-Rei Seat,' reset the stress of summer driving and get a driving experience that is more comfortable and cool than ever before.

Makuake project page

| Company Overview |

Name: Mitsukin Shoji Co., Ltd.

Established: April 2011

Representative: Shinichi Tanaka

Head office: 3-1-35 Shakumachi, Oita City, Oita Prefecture

https://mitsukin.info/