pvc+polyesterConvenient Use:The folding bath tub adult features easy assembly and it is great to enjoy a hot soaking bath in tub if traditional tub is not available. This portable Japanese bath tub keeps water hot for more than 1 hour and there is no weight limit.Easy Store: The inflatable bathtubs for adults is portable and no need to release air after finishing bath. The folding bath tub is only 0.5 square meter and can be stored in any corners, beside washing machine or under the bed. Multiple Drain:Draining of the portable soaking bath tub after a bath is not something that most people spend time thinking about but this is really the difference between a relaxing bath and a stressful one. We designed our drainage systems so that you have different ways of draining your bath tub. Youll be able to use our bath tub without issue even if you move to a new home with a different shower.