Working Principle: Through the waist large wind high speed fan to make a large amount of air outside the body along the body surfaces parallel flows so as to quickly evaporate sweat and reduce the body surfaces temperature. Easy to Disassemble: Fan thread rotating fixed, easy to disassemble, solidly, plug with its own snap to prevent frequent activities caused by poor contact. Strong Wind: Body cooling jacket has an even and dense cutting airflow with a 30 degree diagonal structure creating a more powerful wind. Fast Heat Dissipation: One key to open the mode, the wind quickly cover the body surfaces discharge heat dissipation fast, physical rapid cooling always keep the body cool. Circulating Wind: Three speed control, circulating wind, comfortable fabric, wear resistant and anti wrinkle, micro perforation sweat.