Personalized It's Been Wild 100 Days Of School T-Shirt. The design features playful animals and vibrant colors, adding a fun and lively touch to any outfit. Whether you're a kindergartener or a seasoned educator, this design is sure to bring a smile to your face. 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.