Costume Tracksuit Jacket and Pants. Polyester. Feature: Comfortable and soft, zipper closure, up to the neck,elastic pants waist. Occasion: The Costume is suitable for Re Life in a Different World fans, can be used in daily wear, office, indoor & outdoor, sports, club, etc. Perfect for Christmas, Party, Cosplay and Halloween, Thanksgiving Day, Birthday, etc. Size: Please check our size chart in description and then choose size. Costume Tracksuit Jacket and Pants.