Ultra-Cool 100% Polyester mesh back and sides with lightweight solid front Zipper front closure 2" wide CNSS reflective material Reflective trim around arms and piping down sides for added low light visibility Waist cinches to ensure a perfect fit Two hidden lower outside slash pockets with zipper closures Inside ergonomically positioned lower left radio pocket with flap ANSI/ISEA 107 Class 2 CompliantVendor Style Number: 1521