Super cute pet pj's. They are made well but do run a tad short in length. I had ordered the Small in the Oatmeal color for my 9 lb Chihauhua who has 10" neck, 15" chest and 11" length to base of tail. These were a tad short on him. I liked them so much I did get a purple pair in the Medium which fit him far better. I kept the Small's as I laundered and hung dry them before putting them on my dog. I'm not comfortable putting out of the package from abroad on him before washing. Needless to say the small still fit easily as they are stretchy. They were just a tad too tight for my liking and sizing up proved to be a better fit for my dog. See photo two in the purple pair for the Medium size. fit vs. the Oatmeal which is a size Small. Material is nice and not like most of the polyester types on the market which was a selling plus for me. The little buttons on the back are cute but serve no other function. I did read another review where they chose to remove them purely based on their own aesthetic liking. I don't mind them but if they fall off over time I'm not about to sew them back on. I love the the stripes and calm colors, but most of all the comfort and warmth for my little chi man.