BREATHABLE and LIGHTWEIGHT high visibility reflective comfortable fabric 100% polyester.HIGH VISIBILTY. 5 MULTI-FUNCTION POCKETS DESIGNED FOR CONVENIENCE: 2 large pockets with velcro closure, 1 clear card pocket, 1 small pocket and 1 pen pocket. QUICK EASY ZIPPER: front zipper closure design for easy on and off. Ideal for bicycle riders, night walking, truck drivers, surveyors, construction works, demolition, landscaping, traffic crossing guards, contractors, security.