I've never been all that into pup & circumstance. Besides, no one can prove who left the steamer in the teacher's lounge! This is the perfect tee for all those dogs who bark to their own beat. Teddy doggie tees are on stretchy jersey cotton so don't let the dimensions fool ya. My labrador friends typically rock a 3X, whereas my midsize dogs friends look smashing in a Large. We are working on bigger sizes for my even larger dog friends---stay tuned.