Introducing the High-Performance HEMP Air T-Shirt Perfect for Hot Japanese Summers!

Introducing the HEMP Air T-Shirt

As Japan prepares for another hot and humid summer, tennen, a brand under YS International, is set to launch an innovative product that promises to keep you cool. Starting June 29, 2026, the 100% hemp HEMP Air T-shirt will be available for pre-order on Makuake, aiming to redefine summer comfort through natural materials and superior functionality.

Project Overview

The HEMP Air T-shirt is part of a larger shift towards sustainable and functional clothing, particularly important as summer temperatures continue to soar. With materials that prioritize comfort, moisture management, and environmental sustainability, this T-shirt is designed to meet the needs of modern consumers eager for high-performance wear without compromising on eco-friendliness.

The project will run from June 29 to August 16, 2026, and offers early backers an opportunity to purchase this remarkable T-shirt ahead of its general release, which will be priced at 12,100 yen (inclusive of tax).

The Benefits of Hemp Fiber

Hemp is an ancient textiles material that excels in breathability, keeping skin cool and dry even in extreme heat. Unlike conventional cotton, which requires excessive water and fertilizer for cultivation, hemp is more sustainable with significantly lower environmental impact. Its natural insulating properties also add to its suitability for summer wear.

Although hemp fabric traditionally has a rougher texture, tennen has collaborated with a knit factory in Wakayama to develop a softer, more enjoyable wearing experience. The result is a T-shirt that not only feels great against the skin but also ensures optimal comfort during hot and humid conditions.

Key Features of HEMP Air

1. Breathability and Comfort: The HEMP Air T-shirt allows for exceptional airflow thanks to the hollow structure of hemp fibers. This unique characteristic creates a cooling effect that synthetic fabrics simply cannot match, providing a refreshing wearing experience even in the most sweltering environments.

2. Quick-Drying Properties: One of the most uncomfortable aspects of summer wear is the sticky feeling caused by sweat. The HEMP Air T-shirt boasts impressive moisture-wicking capabilities, absorbing water within just four seconds and quickly dispersing it to maintain a comfortable, dry sensation.

3. Antibacterial and Odor-Resistant: One of the common concerns with summer apparel is hygiene. The HEMP Air T-shirt excels in resisting bacterial growth, which can lead to unpleasant odors, ensuring you remain fresh throughout hot days.

4. UV Protection: Protecting your skin from harmful UV rays is crucial during the summer. The HEMP Air T-shirt has been tested and confirmed to have over an 80% UV-blocking rate without relying on any chemical additives.

5. Sustainable Design: True to tennen's ethos, every element of the T-shirt is crafted with sustainability in mind. Even the sewing threads and tags are made from natural materials, further aligning with environmental concerns.

Color Options

The HEMP Air T-shirt comes in a variety of colors. Choose from subtle hues suitable for summer, including Kinari, Navy, Dusty Pink, and Sage Green, allowing individuals to express their personal style while enjoying the benefits of hemp.

Special Offers on Makuake

For those keen on supporting this eco-friendly initiative, Makuake will offer special discounts to early backers. The first 50 supporters can purchase the T-shirt at an exclusive price of 9,000 yen (25% off) or at 10,000 yen (17% off) during the early bird phase.

About tennen

Founded in 2018, tennen embraces the philosophy of creating clothing that is comfortable not only for the body but also for the earth. Utilizing materials like cotton, hemp, and paper, tennen's designs are deeply rooted in sustainability, focusing on being biodegradable and recyclable to promote a circular economy in fashion.

For further information or inquiries, you can reach YS International through: