INUTEQ L-size black vest with cooling function. - Brand: INUTEQ - Size: L size - Color: Black - Features: Vest with cooling function Thank you for viewing. It cools through evaporation, so it won't get warm as you use it. You just need to put in water at a normal temperature. It definitely cools you down. It's still hot these days, how about it? I'm selling it because I only tried it on and it was provided by my company. I am 170cm tall. The retail price was 18,000 yen.