Thank you for viewing. Dog T-shirt with excellent heat retention, designed to fit the skin. - Brand: MANDARINE BROTHERS - Product Name: SKIN TIGHT WARM T-SHIRT - Size: M I purchased this at the end of September for the cold winter, but I'm selling it because the size is too big. It was too big for my dog the moment I took it out of the bag and held it. It hasn't even been tried on.