FIBONACCI JUMPIN GREEN From store’s description of the shirt: “A dusk-to-dawn style fashion dress shirt by Maceoo is an essential men’s wardrobe staple. Made from a futuristic blended fabric from Italian mills. This fabric will leave you feeling and looking great. Tailored for a perfect balance between a regular and trim fit, it accentuates the body whilst leaving room for comfortable movement.” https://maceoo.com/products/fibonacci-jumpin-green Italian Fabrics/German Thread/Made In Turkey Fabric Content: 100% Cotton Breathable Fabric - 100% Cotton - Quick Dry - Contemporary Fit - No Smell Treatment 26 Pieces Fabrics Combined - Hand Made - German Stitching - Inside Trim - Unique Interlining - Hip Trim - Engraved Logo on Button - Bicolor Button - Soft Hand - Maceoo Luxury Collection Wash Cold, Lay Flat to Dry, Don’t Tumble Dry Shaped Fit - The Model in the highlighted picture is 6 Ft / Size 40" Chest / 31" Waist / 15" Neck. He wears a size 3 = Medium