When it comes to hard work, no shirt has vented more sweat, weathered more blood and grease, or won bigger wars than chambray. It's been the official shirt of blue-collar guys since the 1800s - hell, it gave "blue collar" its name. And when aircraft carriers island-hopped the Pacific in WWII, they did it manned by Navy men wearing chambray shirts much like this. Made of lightweight, breathable 100% cotton – soft, yet durable enough for wrenching on war birds to keep 'em flying. Thanks to Duluth ingenuity, the venerable chambray can handle more work like that yet. Because we added Reach Gussets™ for more freedom of movement so you can launch through your work day. It's so reliable, comfortable and free-moving, you'll want one in every port.