Fashion meets function in Armada's Athlete Favorite Jacket The jacket that started it all, the Gypsum, has been one of our best sellers for years and it’s easy to see why. Fashion meets function in this Moderate Tailored Long Fit jacket with 10K Waterproofing and Breathability. A Mesh Lined Shell keeps out the elements and allows you to rock the Gypsum from opening day groomers to summer slush laps. Wear it your way with multiple adjustment points on Cuffs, Powder skirt, Hood and Hem. The Gypsum; look good, feel good.