Hi! First off I want to introduce myself. I have a 5.5 - 6 month old Yorkie and Chi mix named Valentino. Currently he's 6.2 pounds! Which brings me to my question. I have found an adorable cashmere sweater that I want to get him for the winter. Being summer and much too hot for such a thing, it's currently discounted so I'd prefer to snatch it up now. However, I'm not sure how much growing little guy has left to do. He currently has a 12.5" girth and an 8" neck. This sweater has a 13" girth and an 8" ribbed neck that can comfortably stretch to 8.5". Anyone want to weigh in as to how likely it'll still fit come winter? Thanks in advance!