J. Peterman Mens Button Up Short Sleeve Shirt Navy Blue XL Extra Large

J. Peterman Mens Button Up Short Sleeve Shirt Navy Blue XL Extra Large Good condition. Smoke free. There is a small spot on the front right chest. I captured it in the photos the best I could. I did not attempt to get it out. The shirt feels like silk. I am not sure if it is machine washable. There is no tag showing the material.