Thank you for viewing! Workman Wind Core Ice x Heater Peltier Vest PRO2 ・Product Description 　Official item of the Japan Meteorological Association's Heatstroke Zero Project Cool in the summer ・Amazing speed cooling ・Maximum about -28°C <Surface temperature about -3°C> (※When the ambient temperature is about 25°C, the temperature difference from the device surface temperature (according to the manufacturer)) Warm in the winter ・Amazing speed heating ・Maximum about +39°C <Surface temperature about 49°C> (※When the ambient temperature is about 10°C, when wearing a jacket outside the vest) The most in Workman history! 5 Peltier elements ・Equipped with a total of 5 Peltier devices: 1 on the back, 2 on the lower back, and 2 on the front ・Experience coolness/warmth over a wider area! New function! Dial Moving Adjuster ・By turning the dial on the right chest, the position of the two Peltier devices on the lower back can be adjusted up and down ・You can change the cooling position, so you can feel the cooling/heating more continuously! Adjustable to your preferred temperature ・You can switch between 4 cooling modes and 2 heating modes, allowing for fine temperature adjustments Fits sizes S~5L (chest 80~124cm)! ・Free size design that fits various body types ・Made with stretchy fabric for easy movement ・Prevents slippage and enhances the fit to the body by adjusting the front and side belts ・If the front belt is too tight, you can remove the lower belt and wear it ※The staff at the store has opened the package once to stamp the warranty. ※A warranty is included for initial defects. 　Please contact the manufacturer yourself to handle any issues. 　Returns are not accepted under any circumstances. 　Please understand this in advance. ※Shipping method 　The product will be wrapped in vinyl, etc., to prevent water damage before packaging.