Rothco Mens Insulated CoverallsInsulated for Work, Hunting, etc. Constructed with a tough poly cotton twill shell, nylon lining, and 6oz. Poly fiberfill, Rothco's Insulated Coveralls are built strong and will keep you incredibly warm. Features of the coveralls include two way front zipper from crotch to neck, storm flap with single snap closure at top of the neck, two large slash pockets (nylon lined open with no closure), elastic along the back side of waist only, zippered legs,