A Bernese Mountain Dog has a heart as big as his size. But you try to mess with it and it shows you exactly what it is worth! If you are the proud owner of one such dog, you?ll want to show him just how much you adore him. You can show your friend how special he is by wearing our Bernese Mountain Dog T Shirt Est. 1907. Its ultra chic design and super soft quality will make you fall in love with it. If you want a sweatshirt in a similar design, you can order that too.