Polyester Polyester Fiber: Air conditioned clothing is made of polyester fiber, which is wear resistant, scratch resistant, and not easily damaged. One Click Open Mode: wind quickly covers the body surface, exhausts air and dissipates heat quickly, and physically cools down quickly to keep the body cool at all times. Product Features: Air conditioning jacket features 3D cycle cooling, four gear adjustment, one click start, providing you great using experience. Quick Cooling: When the fan is turned on, the body quickly covers, heat dissipation is fast, and physical cooling is fast. Widely Used: Air conditioning jacket is universal for multiple scenes, such as high temperature environment, outdoor environment, indoor environment, outdoor , travel.