Carhartt ANSI Class 2 Mesh Zip-Front Vest CT106171Built to last, this lighter weight mesh vest works well in warm weather or it can be a high visibility layer over your favorite Carhartt sweatshirt. 3. 4 ounce, 100% polyester mesh Meets ANSI 107 Class 2, Type R visibility standards Triple stitched main seams Zippered front closure Utility band at right shoulder Left chest pocket with pen stall Two tricot fabric lower front pockets with secure hook and loop closures Carhartt label sewn on top left