Nite Ize - L.E.D. Illuminated Sport Vest uses L.E.D & Fiber Optic Technology. This universal sized unit has Red L.E.D. stripes, reflective material stripes, a lightweight, cool mesh body and is shock resitant.

Important - Activate Product First time use requires product to be taken out of retail packaging test mode. To do so, press and hold button until fast flashing is observed (10 or more seconds). Test mode is designed to conserve battery life while in the store and automatically turns product off after 30 seconds.