Purchased this summer and used it about twice. It's in very clean condition. Washed. ~2025 Model~ Peltier Vest with 5 Advanced Devices for Instant Body Cooling/Heating Passes verification tests based on the body mechanisms unique to the Comfortable Work Laboratory, with advanced cooling/heating effects 【Cool and Icy in Summer】 ・Amazing speed cooling ・Up to about -28℃ <Surface temperature about -3℃> (※When the ambient temperature is about 25℃, the temperature difference from the device surface temperature (according to the manufacturer)) 【Warm and Cozy in Winter】 ・Amazing speed heating ・Up to about +39℃ <Surface temperature about 49℃> (※When the ambient temperature is about 10℃, when wearing an outer garment over the vest) 【Workman's Most Ever! 5 Peltier Devices】 ・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】 ・Turning the dial on the right chest allows you to adjust the position of the two Peltier devices on the lower back up and down ・You can change the cooling position, so you can feel the cooling/heating more continuously! 【Adjustable to Your Preferred Temperature】 ・Cooling mode can be switched between 4 types, and heating mode between 2 types, supporting fine temperature adjustments 【Fits Sizes S~5L (Chest 80~124cm)!】 ・Free size design that fits various body types ・Made of stretchy fabric for easy movement ・Prevents slippage and enhances fit to the body by adjusting the front and side belts ・If the front belt is tight, you can remove the lower belt and wear it Item Details Brand Name: WORKMAN (Workman) Product Name: Workman Wind Core Ice x Heater Peltier Vest PRO2 (35580) Size: 【Compatible Height】155~185cm 【Compatible Chest】80~124cm Weight: 【Peltier Device】Approx. 530g (Weight of the device set including switch cord, etc.) 【Battery】403g±10g Material: 【Main Body】90% Polyester, 10% Polyurethane 【Mesh Part】100% Polyester Waterproof Rating: Equivalent to IPX4 (Life Waterproof Level) ・Usable for raindrops and splashes Set Contents: Peltier device / Dedicated vest / Dedicated battery / Dedicated USB cable / Type-C conversion cable / Instruction manual PSE Information: 【Type of PS Mark】PSE