1.Use by unpacking it, 3 individual packs. 2. Disposable pure cotton underwear that applies 100% pure cotton without additions(except accessories), and shaped by clean water at high temperature. 3. Material of pure cotton makes it soft and feels comfortable. It's breathable and more personal nature, with exquisite lockstitch technology. High flexibility does not hurt skin. 4. It is three dimensional tailoring, free of stretch taut, natural fit, and not easy to curl. 5. Travel,Spa, Field Training;Sauna, Camping, Staying Outside Overnight,Trip,Work Overtime, Nursing Center, In Hospital,Menstrual Period, Hiking, Pregnancy,Postpartum, Hospital.