Polartec Classic 200 Bib Overalls: Govt Issue, best quality you can get!! NSN# 8415-01-472-6918. Features: Full length size zipper on each pant leg, double-end zipper along torso in front, adjustable elastic shoulder straps with plastic quick release fasteners, Black color. Manufactured by Polartec which are known for lightweight warmth and breathability. 100% polyester velour construction creates air pockets that trap air and retain body heat. BRAND NEW!!