Medela Ultra-Breathable Nursing Pads are designed for ultimate comfort and protection. With a triple-layered polymer core that absorbs 50 times its weight, these pads ensure dryness day and night. The waterproof back layer and flexible leak guards provide extra protection against milk leakage, keeping your clothing safe and dry. The ultra-breathable outer layer promotes optimal air circulation, preventing unwanted moisture build-up and helping you stay fresh and comfortable all day.