Personalized Happy 100 Days Of School Toddler T-Shirt. Whether your child is celebrating their 100th day of school at home or in the classroom, our Happy 100 Days Of School design apparel is a must-have. It's not only a stylish addition to their wardrobe but also a special keepsake that they can cherish for years to come. Get your hands on this cute design today and make your child's 100th day of school even more memorable! A toddler-soft cotton tee in look-at-me, big kid colors. 4.5 oz., 100% combed ringspun cotton. White is sewn with 100% cotton thread. Topstitched rib crew neck. Double-needle stitched sleeves and bottom hem. Shoulder-to-shoulder taping.