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 • Quarter-turned to avoid crease down the center • Blank product sourced from Bangladesh, Honduras, Haiti, Mexico, or Nicaragua Size guide LENGTH WIDTH S (inches) 28 18 M (inches) 29¼ 20 L (inches) 30¼ 22 XL (inches) 31¼ 24 2XL (inches) 32½ 26 3XL (inches) 33½ 28 LENGTH WIDTH S (cm) 71.1 45.7 M (cm) 74.3 50.8 L (cm) 76.8 55.9 XL (cm) 79.4 61 2XL (cm) 82.6 66 3XL (cm) 85 71.1

This t-shirt is everything you've dreamed of and more. It feels soft and lightweight, with the right amount of stretch. It's comfortable and flattering for both men and women. • 100% combed and ring-spun cotton (heather colors contain polyester) • Fabric weight: 4.2 oz (142 g/m2) • Pre-shrunk fabric • Shoulder-to-shoulder taping • Side-seamed Size guide XS S M L XL 2XL 3XL 4XL Length (inches) 27 28 29 30 31 32 33 34 Width (inches) 16½ 18 20 22 24 26 28 30

The What If 100 book is a rundown of What If's most popular episodes. An imaginary adventure through time, space, and chance. The book asks fascinating hypothetical questions and offers up answers that are grounded in scientific theory.