When you want to express your admiration for two of the GRM forum's favorite cars, this shirt has you covered!• 100% ring-spun cotton• Sport Grey is 90% ring-spun cotton, 10% polyester• Dark Heather is 65% polyester, 35% cotton• 4.5 oz/y² (153 g/m²)• Pre-shrunk• Shoulder-to-shoulder taping• Quarter-turned to avoid crease down the center• Double stitching on the neckline and sleeves adds durability. Size guide S M L XL 2XL 3XL Length (inches) 28 29 ¼ 30 ¼ 31 ¼ 32 ½ 33 ½ Width (inches) 18 20 22 24 26 28 Note: this is a print/embroidery-on-demand product and is not eligible for returns. Please ensure that you are ordering the correct product in the correct size before completing your purchase. If you receive a product that is incorrectly manufactured or damaged before delivery, you may be able to submit a request for a replacement or refund. See our returns and exchanges policy for details.