I was apprehensive about buying my dog clothes online, because other Pittie moms know the drill -- what fits in the back usually never fits the front! I took a chance anyway and ordered 2XL and I was pleasantly surprised to have them not only fit her, but be excellent quality. The pj's are very warm for her, and are very soft. What started off as a hesitation is now a staple in her wardrobe. I'll definitely be buying more.