And ewe, and ewe and ewe. While it might make them feel a bit sheepish, this tee will let your dog know he/she has been herd. 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.