The biggest plus of this dog vest is that it doesn't rub or bind on your dogs legs or chest. I have had other vests that you have to cut to fit and have still had issues with rubbing and causing irritation under my dogs legs. This material is waterproof fleece just like their jackets, and it is soft to the touch. I had this one for two seasons now and it has worked well and has durable construction. I would be cautious letting your dog where this when the weather is too warm.