T-rex + excellence = REXCELLENCE! (We love a good word mashup!) Add some humor to your son's wardrobe with the Life is Good Kids Rexcellent Long Sleeve Crusher Tee. How often do you see a dinosaur with sunglasses? His tiny little t-rex arms are even giving a "thumbs up" in approval. Unlike scaly dino skin, this shirt is soft as a kitten. The secret? It's USA-grown cotton fabric.