This is a great fleece layer for cold fall days, and makes a great base layer for under a winter coat. It can be a little difficult to get on my dog as he doesn't like his paws touched so lifting them to go through the leg holes takes a bit. But he's getting use to it. It's not a warm as the zip up fleece by Ruffwear, but my dog hates the sleeves on that one so this is a good compromise.