I took it out of the bag for the photoshoot. I haven't tried it on. It still has the tags. The size is free size. Coolness of minus 7°C! Evaporative cooling vest that uses only water, without electricity ● Generates water vapor and absorbs heat with its unique evaporative cooling system 1. Water retained inside evaporates 2. Water vapor adheres to the body through the evaporative heat film 3. Air circulates inside the clothing due to the breathable double Russell fabric + bellows specifications, promoting evaporation and heat absorption ● Suppresses the rise in internal temperature with the heat-shielding effect of the surface fabric! 【Surface aluminum coating effect】 Reflects sunlight and suppresses the rise in internal temperature of the clothing. Verification method: After being left in direct sunlight for 30 minutes, the surface temperature was investigated. (30cm away from the ground) Result: Reflects sunlight and suppresses the rise in internal temperature of the clothing. ● Easy size adjustment with adjusters + stretch tape Stretch mesh is used around the arms to increase elasticity and make it easier to move. You can wear it with various body types by adjusting the slider and adjuster. ● Cooling sensation is further enhanced by using it with fan-equipped wear! Wearing fan-equipped wear over the Hydro Gear vest increases breathability and enhances the cooling sensation! Creates a cool and comfortable state. Thank you for viewing.