These menstrual spats are recommended for those who are concerned about high days or when sleeping on. Since it has a wide waterproof cloth that covers the back of the bag, you can wear it over your sanitary shorts for added peace of mind. The elastic material fits your body movements, making it perfect for exercise and sports. This is a piece that you can rest assured when you are concerned about anything such as long classes, meetings, physical education, club activities, travel, sleepovers, etc.