This multi-pack of Bamboobies Washable Nursing Pads includes 3 pairs of ultra-thin regular and 1 pair of overnight pads. Bamboobies nursing pads are made of ultra-soft and soothing bamboo rayon velour with an absorbent inner layer of cotton and outer milk-proof liner to help prevent embarrassing leaks. The ultra-thin, heart-shaped regular nursing pads are made for light leaking and are designed to be less visible through clothing. The round-shaped overnight nursing pads are not only ultra-soft, but larger, thicker and super absorbent for heavy leaking and newborn nursing. Place pads inside your favorite nursing bra or tank with the ultra-soft velour side against your skin. Change pads when wet & machine wash after every use. Care Instructions: Machine wash on warm and dry completely on medium heat. No fabric softeners. Use mild bleach solution if discoloration appears. 57% Bamboo Viscose/23% Polyester/20% Cotton Absorbent Inner Layer: 55% Ramie/45% Cotton Outer Leak-Proof Layer: 100% Polyester with TPU Waterproofing