Japan's retailers showcase new cooling apparel to beat summer heat

South Korean athleisure brand HDEX introduced an Aero Tech short‑sleeve shirt priced around ¥10,000, featuring a lightweight material that feels instantly cool, rapidly wicks sweat and dries fast, while offering a street‑ready design suitable for both gym workouts and everyday wear.

Japanese brand KEYUCA announced a line of heat‑reduction products slated for 2026, including a foldable insulated bottle holder, a carabiner‑equipped cooling wrap, a moisture‑wicking camisole‑tank hybrid, and a lightweight 3‑way body fan that can be worn on the belt, neck or hand, all designed to keep users comfortable during Japan’s expected intense summer temperatures.