Designed to fit a range of sizes from S to 2XL, they cater to every body type. SizesS M L XL XXL King 2XL 3XL 5XL 6XL 7XL 8XL. Boxer Shorts Underwear. T Shirts, Regular & Big Tall King Size. SizesS M L XL 2XL 3XL 4XL 5XL 6XL 7XL 8XL 9XL 10XL.