The Seaport if the perfect jacket for when you don’t need a jacket, it’s a lightly insulated shirt with a 2 oz. poly insulation that we endlessly researched to come up with the perfect weight/warmth ratio. Other features adjustable snap cuffs, a convenient front snap placket, shirt tail hem, and a cozy flannel lining that will wick any moisture from your body. The wind and water resistance guarantees you stay protected from the elements, no matter what kicks up.