The Grand Flannel in Checkered Blue By MuskOx. Heavyweight Flannel. MuskOx Apparel The Grand Flannel, Burgundy, Red. 100% Cotton, Durable Flannel Shirt. Our flannels are made of a heavy duty cotton twill with a soft brushed finish so you can be prepared for any adventure without sacrificing comfort. Since we want you to be built for every occasion, we've included two secure chest pockets for you to bring your vitals along.
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