1. COMFORT and STABILITY: NEW reflective vest is made of TPU, high elasticity and comfort at the same time but not easy to SLIP; 140g light weight allows you to wear it breathably and comfortably for a long time without any sense of weight. 2. ELASTIC RUNNING VEST: IEVOEA great elastic reflective running gear can be adjustable in waist 21-28 inches / shoulder 12-23 inches, slide the buckle can reach the size suitable for all ages and gender. 3. SAFETY LED HIGH VISIBILITY VEST: There are two rechargeable LED eco-friendly running light, front and back, reflective tape for clothing, and safety shoes lights for walking at night, so that you can easily be found whether running, walking or riding process, visibility of more than 1000FT, whatever weather, to provide sufficient response time for passing drivers, full of security. 4. FAST CHARGING RUNNING VEST for RUNNER: IEVOEA running equipment also equips you with two USB charging cables, you can finish charging both ends at the same time in less than an hour; three modes allow the running lights last from 5-9 hours. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.