This is a fantastic all in one skunk costume in the Japanese kigurumi onesie style. The black and white design depicts a skunk, with the hood being the skunk's face so that you can be fully skunk-costumed without uncomfortably covering your eyes and mouth. It has a tail big enough to swing, a drawstring hood and pockets.
These onesie costumes are known as 'kigurumi pyjamas' in Japan where the craze originates; kigurumi meaning 'a soft toy that you wear'. It is comfy enough to use as pyjamas, or if you prefer you can use it as a fancy dress skunk costume.