LED Run VestWe designed the LED Running Vest with serious runners in mind. It's a sleek, comfortable, and functional way to be seen and safe on low-visibility, early morning, and late night runs. Made of lightweight, water-resistant mesh, its two illuminated flexible polymer strips (front & back) can each be set to one of two bright LED modes (steady glow or flash), and the sides are trimmed with 360° passively reflective safety accents. The power/mode buttons are easily accessible on the front and back of the vest, and easily adjustable straps at the waist can be cinched for a precise fit. Two zip closure pockets in the back are individually sized to hold everything you need for your run, with one of the back pockets featuring a weather-resistant design to keep your cell phone or other valuables safe if you get caught out in the rain. There's even a handy key clip for your home or car key.The LED Run Vest is a comfortable, lightweight safety vest that features both bright, active LED illumination as well as passively reflective safety accentsBright Red LED illuminated Stripes are located on the front and back of the vest, and can be turned on/off individuallyBack zipper pockets with both mesh and weather-resistant pocket options that easily keep your personal items secure and available during your runBack pocket includes handy key clipEasily adjustable straps on both sides of the vest allow for precise fit for comfort while runningBright Red LED illumination front & back - Glow or Flash ModesWeather-resistant design and constructionBattery Run Time: 100 hoursEasily replaceable batteries included (2 x 2032 3V Lithium Batteries)Dimensions L/XL: 20.8in x 13.6in x .01inWeight L/XL: 3.1oz