I Teach Social Studies... What's Your Superpower? Short-Sleeve Unisex SS T-ShirtAttention all Social Studies teachers! Let's brag a little, huh? 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 Shoulder to shoulder taping Quarter turned to avoid crease down the center This product is made especially for you as soon as you place an order, which is why it