VEST 6-POCKET ECONOMY LIME 3XL CL-3 SILVER REFL. The Class 3 safety vest is designed to keep you visible in low light conditions. It is made of 100% polyester mesh with a 2" silver reflective material with a contrast finish. It has two outer waist pockets with velcro closure, front zipper closure, two outer chest pockets and two inner waist pockets for storage on the waist. inside vest, plus mic flaps on both shoulders that provide easy access to your radio microphone.