I wore this temporarily at a scorching work site, but I no longer need it as I've moved to an office job, so I'm selling it. Worn by firefighters! Featured on the YouTube channel "I Love Tools"! When sufficiently soaked with water, it lasts a full day. Used in conjunction with a peltier vest, it provided intense cooling and was very effective. I wore it after soaking it with water 7 times (it did not directly touch my skin). I cleaned and completely dried it at the end, but I'm selling it as a used item, so please understand that. Original price: 35,000 yen I will fold it up small to save on shipping costs. COOLINE SX3 uses specially developed 3D structural fibers to retain water for a long time and provides a natural cooling effect in response to rising body temperature. It can cool the surface temperature of the body by up to 12°C. The cooling effect lasts for up to 20 hours. It's easy to use, just soak it in water before use. Due to the special material, it is difficult for the body to get wet from the absorbed water. You don't have to worry about overcooling your body with a natural cooling sensation. DEOXX(R) fresh processing is applied to suppress the generation of unpleasant odors. Suitable as a cooling inner layer for work clothes. Specifications/Standards Washable up to 30°C Water content: 0.7-1.0L of cold water Color: Navy Material: COOLINE(R) Polyethersulfone (PES) 100% Notes: Dry completely once a week. L size Length (cm): 38 Waist (cm): 100-106 Includes Japanese and foreign language instructions.