Vintage fishing shirt slayin and filletin size M

"slayin' and filletin' since 1960" vintage good condition t-shirt. Heavy cotton (thicker) but still has nice fall and it is worn in and soft. No flaws, tears, or stains. Just gently used. Tag says "M" 100% cotton. Navy blue. MEASUREMENTS: From under the arm across to under arm is 20" (lain flat and unstretched) From top shoulder to bottom shirt is 28"