[This review was collected as part of a promotion.] This is a great costume! It fits true to size and is so comfortable to wear. There is enough room to layer clothes underneath if it is cold on Halloween, but the material is light weight enough that you won't overheat is the weather ends up being warm. The tail is attached really well, it hangs nicely and stays in place the whole time, even while jumping and playing! My favorite feature is that is it so comfy it can be used to lounge in well after Halloween!