My late dog Stitches, (see Avatar) had a short haircut every Spring. Invariably the weather would then turn cold for several days and the house could also feel chilly and damp. I took a piece of polyester polar fleece and made him a cape of sorts. It buttoned around his neck with a wooden toggle button and a loop. I also made a fleece strap of sorts with velcro to fasten midway between his chest and upper belly. it worked well and it was my own invention.