Not only will these keep your Dogs lovely and warm this but they will also look SO cute! * Soft & cosy material * How do you put them on? You can either put them straight over the head or if your Dog doesn't like having things over the head don't worry as the Fleeces have a Zip that goes from the top to the bottom so they can easily step in! The Size Chart can be found in the photo section. Using a tape measure, firstly measure around the neck where the collar would sit. Then measure the chest from the widest part of your Dogs ribcage, which is just behind the front legs. Then measure the length which is the distance between the lower neck and the top of the tail and then measure the Leg Length. If they are in-between sizes then we would recommend sizing up.