Like the trucker hats of the 1970s

medical-grade nylon that’s safe for food and water

and abrasion for more than a century

They’re constructed with oil finish Shelter Cloth and reinforced with a second layer of Tin Cloth on the leg fronts

our lightest-weight oil finish waxed fabric–thoroughly saturated with our special wax mixture to ensure maximum water resistance

filson man field jac shirt fmosh0015w0097 278 SS26_ShirtTee Like the trucker hats ofThis versatile overshirt provides an added layer of protection on cool days in the field. Patterned after our original iconic Jac Shirt thats been a favorite since the 1970s, its versatility makes a sure go to favorite. The strong midweight fabric is a reverse sateen weave, smooth on the inside for easy layering. Sturdy buttons secure the front, chest pocket flaps, and adjustable cuffs. Straight hem for untucked wear. Spread collar.