Available in sizes up to 4XL, this hoodie is a versatile and stylish addition to any wardrobe. /yd², 60/40 CVC ring-spun cotton/polyester. High stitch density. White T-shirts are Dyed. Just like every other shirt, but the White dye is the most abundant and cheapest available, because face it cotton is mostly white to start with, so is does not take much to change it.