Feature: This seat cushion is designed for hemorrhoid prevention and postoperative person. Its buttocks which touch the sides of the inner core thickened and the middle is hollow, so that the buttocks and the chair do not contact and is breathable. It folds the hips in line with the body's streamlined curves, releasing pressure from the body. According to the different physiological structure between men and women, our teams design this cushion in two styles, so that different groups of people can have the most comfortable experience. The inner is high density space memory foam, customers can choose normal memory foam or bamboo charcoal foam.