Pregnancy involves lots of changes in your wardrobe, including your lingerie. And, if you're planning on breastfeeding, a nursing bra is one more essential. Nursing bras are somewhat different from maternity bras and are constructed for easy access, with cups that either drop down or slide over. Most nursing bras have clever clasps that can be opened and closed with one-hand. Aside from access, another important feature of a nursing bra is support for breasts that are heavier and more sensitive than usual. Many nursing bras are soft-cup with support features like side slings and molded cups. Fabric is another consideration: look for nursing bras made of cotton or other breathable materials to prevent dampness being trapped against the skin. Like maternity bras, nursing bras will have multiple closures, making it easy to tighten the band as your breast size decreases.