You've now found the staple t-shirt of your wardrobe. It's made of 100% ring-spun cotton and is soft and comfy. The double stitching on the neckline and sleeves add more durability to what is sure to be a favorite!• 100% ring-spun cotton• Sport Grey is 90% ring-spun cotton, 10% polyester• Dark Heather is 65% polyester, 35% cotton• 4.5 oz/yd² (153 g/m²)• Pre-shrunk• Shoulder-to-shoulder taping