Feature 1Creative Cooling Vest: The cooling vest has two removable fans that moves fresh air along the back and shoulder, evaporating sweat instantaneously that make you feel cooling in hot day. 2Heat Management: The fan cooling vest can manage heat stress, can feel very comfortable at work, avoiding heavy sweating and heat stroke. 3UV Resistant: The body cooling vest is made of polyester, skin friendly fabric, sun protection and heat resistant, can resist most UV rays, breathable, lightweight for easy to carry, also good for traveling. 4Reflective Stripe: The fan cooling work vest has reflective stripes on shoulder that keep you safe in night, can help you keep cooler in hot job site conditions. 5Various Scenes: The air conditioned fan vest is suitable for worker, construction, gardening, hiking, walking, kitchen cook, guide, farmer or warehouse worker.Item Type: CoolVestVoltage: 5VPower Supply Port: USBSize Recommendation:XL--JP:3L--US:M--KR:100-- Suitable Height: Approx. 175cm/68.9inXXL--JP:4L--US:L--KR:105-- Suitable Height: Approx. 180cm/70.1inXXXL--JP:5L--US:XL--KR:110-- Suitable Height: Approx. 185cm/72.8in .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x CoolVest2 x Fan1 x Connection CableNoteDo not include power supply, need to buy mobile power additionally.