MACKINAW WOOL JAC-SHIRTThe Mackinaw Wool Jac Shirt insulates like a coat and wears like a shirt. Its made from the wool that has provided protection from cold, rainy weather for over a century. The flapped front pockets keep essentials close at hand and feature hidden buttons that wont snag on equipment or gear. Buttoning front closure and adjustable cuffs. Our 100% virgin wool wicks moisture away for evaporation and can absorb up to 30% of its own weight in water without