Softshell help draw out flat/inverted nipples with soft, flexible backs. The design is vented to allow air circulation during wear and the contoured shape provides a smooth look under clothing. Designed specifically to help with sore nipples, they offer protection that allows the nipple to heal. Medela Breast Shells feature a soft, flexible back for exceptional support. They adapt to the shape of your breast. The Breast Shells have a low-profile design for a natural appearance under clothes FEATURES : • SOFT, FLEXIBLE BACKS: Soft, snug-fitting silicone back feels comfortable on sensitive skin DESIGNED SPECIFICALLY TO HELP WITH SORE, FLAT OR INVERTED NIPPLES: Ventilation holes allow skin to breathe, promoting healing • CAN BE WORN ALL DAY BETWEEN BREASTFEEDS: Flexible, to adapt to the shape of your breast • LOW PROFILE: Look natural under your clothes • INCLUDES: (2) shells, (2) backs, (4) washable foam inserts, instruction manual • LOVED BY MOMS, RECOMMENDED BY DOCTORS: The world's leading brand in breastfeeding research, Medela has worked with researchers in breast milk for over 60 years, and is the #1 choice for hospitals and healthcare professionals around the world. Our multi-award winning breast pumps and accessories are used and loved by moms in over 100 countries.