In celebration of fifty years in business, Patagonia has come out with some special designs to mark the achievement. The Patagonia Women's 50 Year Responsibili-Tee features a large retro-inspired graphic on the back. The crewneck style is classic and versatile and is designed to be worn tucked or untucked. Their lowest carbon footprint t-shirt is made with 100% recycled fabrics and is designed to be worn tucked or untucked. Stuff it in your waistband for a retro look, or wear it loose and free for a fit that's the best of both worlds.