Personalized 100 Days With My Awesome Class | 100 Days Of School T-Shirt. Whether you're a teacher looking for a special outfit or a student wanting to show off your school spirit, our "100 Days With My Awesome Class" design is the perfect choice! 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.