Adjustable: Easily adjust the belly band pregnancy support to your growing baby bump for maximum comfort and support throughout pregnancy. SIZING: See our pregnancy belly support description below. Breathable: Stay cool and comfortable with the breathable fabric of the maternity support belt. This belly band for pregnancy is the perfect complement to your maternity clothes. 65% Polyester, 17% Nylon, 18% Elastodiene Hand Wash Only Fastening : Hook Loop Black Durable: The pregnant belly support belt features new reinforced hooks and loops fabric fasteners designed to last throughout your entire pregnancy and beyond.