1. There Are Multiple Colors On One Vest, And The Mode Can Be Easily Selected By Just Pressing The Button For Easy Access. Three Light Options: Multiple Colors Alternating, Fixed Favorite Color, Multiple Colors Flashing Alternately. The Led Reflective Vest Uses Flexible Fiber Optic Cables And A 3 Meter Reflective Chest Strap To Cover The Shoulders, Chest, Waist And Back, Providing 360-Degree Protection. Find You In Any Light Condition. 2. Lightweight And Safe, Led You Will Hardly Notice You Are Wearing It. 360° High Visibility And Reflectivity: 3 Meter Long Chest Strap And Luminous Vest Combination, Can Be Seen From 1km Range. Reflective Vests Keep You Safe While Walking, Walking Your Pet, Jogging, Running, Biking, Playing flying disc, Horseback Riding, Or Even Biking With Family Or Friends For Outdoor Activities At Dawn Or At Night While Working 3. Turn On The Headlight. The Front Chest Light Replaces The Headlight And Flashlight, Making Your Head More Relaxed. No Headlight Is Needed, Freeing Your Hands And Making You Extremely Comfortable. 4. Adjustable Chest Strap. The Chest Strap Adopts An Elastic Safety Design With Reflective Strips And Is Connected To The Front With A Buckle. Elastic Straps Extend To Sizes Ranging From 26 - 44 Inches. This Vest Can Be Worn In Cold Or Hot Weather. Perfect Fit And No Wobble. This Open Design Makes It Easier For People To Be Exposed To The Air. It Sweats Less And Is More Comfortable Than Traditional Reflective Vests 5. Long-Lasting: The Usb Rechargeable Led Reflective Vest Has A Built-In Polymer Lithium-Ion Battery, So There Is No Need To Replace The Battery Frequently! The Vest Light Can Provide Up To 4-6 Hours Of Battery Life Per Charge. Not Only Can You Enjoy Sports, You'Ll Also Protect The Environment! Product Name:Running Vest Control Mode:Button Type Battery Model:Polymer Battery