This heavyweight flannel is woven with a slubby yarn so thick that it’s normally used for making 10oz denim. The yarn is rope-dyed a very dark blue using a method loosely known as dropout reaction dyeing which helps to better keep the color. As the yarns gradually fade, the overall pattern and look of the shirt will evolve and change. With a non-brushed interior and robust elbow patches, this shirt can be worn over a range of seasons and temperatures, and will give you many years of fading enjoyment. We’ve also started using original indigo-dyed buttons which will gradually fade to beautiful shades of blue.