Product Name: WZ-5 Wind Core Ice x Heater Peltier Vest PRO2 Manufacturer: Workman Purchased at a physical store in June. I felt that the Peltier part was uncomfortably cold and didn't suit me, so I only used it for about a week. I wore it over an inner layer, but there are fine scratches on the cooling plates. There were no problems during use. Accessories are complete, including the warranty.