92% Bamboo, 8% SpandexUpgraded Design for All-Day Wear: Compared with other pumping bras, our breast pump bra can not see the pumping hole lines through shirt! The special design creates a smooth and seamless look, comfortable fit under clothes. You can wear it in the office or other occasions - no wardrobe change necessary!Hands Free Pumping and Nursing Bra in One: With one-step nursing clip and hands free pumping design, make breastfeeding easier & protect your privacy better, and you can pumping and breastfeeding at the same time. The adjustable shoulder straps provide more flexibility to you, and will support you (and your routine) for the whole day.Great Supportive: The upgraded design offer great support for pumping, if you feel the support of the nursing pumping bra is insufficient while pumping, you can choose to clip it for more support and hold the flange more firmly. Breast pump bra hands free help you can do multi-tasks or enjoy your leisure time while pumping.Comfortable & Soft Materials: With 92% Bamboo, 8% Spandex, this breast pumping bra has excellent softness, elasticity, you could wear the breast pump bras all day in your daily life. Easy to wash and dry