TAGVO LED Reflective Vest, 3 Modes USB Rechargeable LED Light & Reflective Stripes - 360 Degree High Visibility Night Safety Vest, Adjustable Size Universal HIGH VISIBILITY & DOUIBLE PROTECTION: there are seven LED light at every shoulder strap which ensure your safety in the event a car hasn't turned on it's headlights with completely in the darkness; meanwhile, shoulder and waist strap have refelctive stripe provides fantastic visibility. USB RECHARGEABLE: just need the power source with USB port to charge for the LED vest, 6 hours running time; when charging, the LED light will lighted up and the light will automatically close after 3 hours full charging. ADJUSTABLE SIZE: each strap is made out of 2" wide elastic, shoulder strap can be adjustable 27 - 50 inch (69-127cm), the waist strap can be adjustable 14- 27 inch (35 - 69cm). COMFORTABLE & LIGHTWEIGHT: soft and light material for increased comfort, good-quality elastic strap and four adjustment buckles ensuring a perfect fit and freedom of movement, front access quick-clip design for easy on and off, quickly release. MULTIPURPOSE: great sports gear for running, walking, cycling, biking, motorcycle, jogging, dog walking, work on the construction site, traffic safety, etc.