• Visibility enhancing flashing reflective USB rechargeable design • Ultra-lightweight - under 3 oz. - super minimalist feel • Bright green optic beam 360° LED illumination • Solid and flashing modes, easy push button on-off • Quick zip-on, moisture resistant design • USB rechargeable / no batteries to replace! • Front and back reflective booster zones • Fully adjustable design (Fits XS-XL)