Super light waist belt with CREE® 150 Lumen LED. Two sizes: S/M (waists: 22″ – 36″) and L/XL (waists: 26″ – 40″) . Ultra-slim design with breathable hex mesh construction. Powered by new rechargeable Lithium-Ion battery pack and supplied with mini-USB charging cord. Built-in rear red flashing LEDs on battery box and reflective trim. Includes removable cell phone holder ( for iPhone 6 and smaller).