I started making Winniewear when we adopted our dog. She had very little fur, a flea allergy, and was underweight. She was freezing when it dropped below 50F. It was hard to find anything that fit Winnie. So I started making shirts that fit her that I felt okay leaving her in when we left the house as well. Needless to say she now has fur and has put on some weight but she still gets cold easily.