Hands-free pumping made easy. Designed for use with all Medela double electric breast pumps that use two-piece breast shields. Soft nylon, spandex blend feels ultra-soft next to skin and adapts to provide exceptional fit and comfort. Reinforced openings offer superior no-slip support. Has an integrated top hook and is easy to zip up. Oeko-Tex® certified. Safe from harmful chemicals. Machine wash cold in garment bag on gentle cycle. Tumble dry low.