I bought this for my 3-year-old Shih Tzu who weighs 8kg, but the fit isn't right for his stocky build. He looked uncomfortable, so I only tried it on. The orange one is XXL and was roomy, but the armholes/neck area didn't fit. The brown and gray ones are XL. They can be sold separately. In that case, it's 700 yen per item.