Vintage Columbia Cream Long Sleeve Button Up Shirt XXL

Great vintage condition. Minor signs of wear shown in pics. There’s a small black spot on front beside pocket, see close ups. Pic 7, it’s just a shadow, no discolouration. No holes, pilling or pulls. Size and materials tag unreadable. Size XXL chosen based on measurements in pics. Feels like cotton, like a thin denim. Cannot confirm. Please look at all pics and zoom in for a closer view. Vintage Columbia Cream Long Sleeve Button Up Shirt XXL YY8209US