This legging are made of polyester and spandex, the combination of polyester and spandex makes these leggings very soft and comfortable, not only can be worn on Halloween, but also can be used for daily fitness workouts.OccasionWear this leggings, you can date with friends, vacation, travel, beach, office, work, halloween party, you can also wear it to exercise at home to make your workout time more funKindness reminderSize selection: Please refer to the size information in the detailed description or the size chart in the picture display area before purchasing, please do not refer to the Amazon size chart. Clothes washing care method: machine washable, hand wash in cold water is recommended, the water temperature does not exceed 30 , do not bleach, hang to dry.