93% Cotton, 7% Spandex Clasp closure Hands Free Pumping Bra (Patent Protected Design) Nursing and Pumping Bra can be used for breast feeding, pumping or both together. A perfect choice for working moms. COMFORTABLE MATERIALS - 93% cotton and 7% spandex. You can wear it all day long and allows you to go about your normal routine. The X Structure and Adjustable Shoulder Straps It is designed to hold bottles and shield in place securely and comfortably. The adjustable shoulder straps provide more adjustment, also you can cross the back straps. Detachable Clip Design - With one-step breastfeeding clasp, it is easy drop cups for convenient feeding and protect your privacy. Fit All Breast Pumps: hands-free pumping and nursing bra suitable for breast pump like Lansinoh, Philips Avent, Spectra and Evenflo, etc.