Rohan have a little something of the check variety. These flannel shirts are made from their Thermocore fabric, a hollow core polyester that’s warmer, lighter, more durable and generally smarter than cotton. They explain “it’s also much easier to wash and, because it absorbs virtually no water, will comfortably dry overnight. And, unlike cotton, it won’t crease – so it’ll be ready to go again the next morning, with no ironing required. ” What more could you ask for?