Dr Seuss How the Grinch Stole Christmas Fair Isle Graphic T-Shirt Front of the shirt features Dr. Seuss classic character The Grinch with Fair Isle background. Adult Men Size. Length from back of the neck to the bottom in inches: Small is 26, Medium is 28, Large is 29, XL is 29, XXL is 30 Underarm to underarm laid flat in inches; Small is 17.5, Medium is 19.5, Large is 21.5, XL is 23, XXL is 25