This koala costume is an adult-sized outfit in the Japanese kigurumi onesie style. Kigurumis are super-comfy costumes that can be used as a pyjama suit onesie (as well as a fancy dress costume of course!).
The koala kigurumi features the koala's face on its hood with an appropriately gigantic pair of ears and a cute face to go with it. The grey material is a soft fleece material, 100% polyester.