Item #393546 AK7 100% cotton twill fabric is treated to repel stains & resist wrinkles Bust darts and back shaping darts trim the fit Even-vented hem may be worn tucked or untucked Adjustable cuffs Machine wash. Imported The All-cotton Twill shirt you don't have to iron. Our all-cotton Twill Sport Shirt only sounds rugged. It's beautifully tailored, with bust darts and shaping seams for a better fit. An even-vented hem allows you to wear it untucked, if you'd like. Adjustable cuffs trim the sleeves. The best part? A performance finish means it'll come out of the dryer looking perfectly pressed, crisp arm pleats and all. That's performance.