Personalized 100 Days Of Loving School T-Shirt. From kindergarten to elementary school, these items are a great way to engage students and make learning fun. With a variety of funny and educational designs, they encourage creativity and inspire young minds. Wardrobe essential for looking good, 24/7. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar. Shoulder-to-shoulder taping. Double-needle stitched sleeves, bottom hem and front neck. Note: greys are a cotton/polyester blend.