NWOT AYR practice dress in coastal stripe size Medium Underarm 20” length 52” We turned our best-selling tee shirt into the world's easiest, chicest dress. Made from 100% Dime Knit™, our signature super satisfying heavyweight jersey. Like its sister, The Practice Tee, this relaxed, mega flattering shirt dress has THEE effortless, slouchy, hangs-off-your-shoulders sleeve that just adds to its aura of "Oh this old thing?"