T-shirts come in 2 styles Ladies fitted  and Unisex T-shirts.  Fitted ladies tshirts  are preshrunk made with 95% cotton and 5% spandex. Unisex T-shirts are 100% Heavy Cotton.
 
Unisex Size recommendations S (0-4) Medium (6-10), Large (12-14), X-Large (16-18), 2XL (20-22), 3XL (24-26)
Fitted Size recommendation:  Small (0-4), Medium (6-8), Large (10-12), X-Large (14-16), 2XL (18), 3XL (20)