About This Soft and Comfortable Material: women's zip nursing tops are made of 90% Polyester and 10% Spandex; The material is soft, stretchy, and breathable, ideal for both pregnancy and postpartum Discreet Nursing Access: women's nursing breastfeeding shirts feature an invisible nursing design; The zippers work smoothly, and the hidden design keeps things modest in public Easy Zipper Design: nursing tops for breastfeeding is discreet yet easy to use one-handed, which is a big help during feedings, providing ease and convenience for busy moms Proper Fit: the stretchy fabric gives you maximum freedom, and there are 5 sizes to choose from; They are a loose, fit that's flattering and not clingy; Please refer to the size chart before purchasing Package Included: you will get 4 pack women's breastfeeding shirts with versatile colors, suitable for mixing and matching without worrying about laundry every day; These tops are practical Whether you are at home, or going out to do errands Overview Fabric type : 90% Polyester, 10% Spandex Neck style : Round Neck Sleeve type : Long Sleeve Fit type : Skinny Fit