It's flannel, so you know it's going to be soft and warm. But the yarns in the Excavation are hollow-core, making them more thermally efficient than ordinary yarn, so keeping the chill off becomes easier. Also, the polyester has moisture-wicking technology. So this is a flannel that's also a performance shirt, ready for hard work or relaxed leisure.Models shown are 6'0 to 6'2 tall, wearing size M/32x32.