A great extra layer, Carhartt's Duck Vest is made of cotton duck and insulated for warmth.

Fabric:
12-ounce firm hand 100% ring spun cotton duck canvas
Water-repellent and wind-resistant
Nylon lining quilted to arctic-weight polyester insulation

Features:
Rib knit collar
Brass center-front zipper with interior storm flap
Interior pocket with hook and loop closure
Two large insulated lower-front pockets
Locker loop
Drop tail hem
Carhartt-strong triple-stitched main seams
Carhartt label sewn on left pocket