"Have lots of good fun that is Funny" in a Dr. Seuss, Cat in the Hat Toddler Tee by Trend Lab. Cat in the Hat Tee is made from the softest white cotton jersey and features the classic Cat in the Hat in a beautiful screen print. Dress your child in Seuss style with this fantastically fun Toddler Tee by Trend Lab. Toddler Tee is size 24 months and is also available in sizes 12 and 18 months.