Personalized 100 Days Of School And Loving It T-Shirt. Whether your child is in kindergarten or elementary school, our 100 Days Of School And Loving It school bus design is a fun and stylish way to commemorate this special milestone. It also makes a great gift for teachers and parents to wear and celebrate together. Get your hands on our cute and happy 100 days of school design apparel and make your child's 100th day of school even more memorable! 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.