bamboobies® are made of ultra-soft and soothing bamboo rayon velour, an absorbent inner layer of cotton with an outer milk-proof™ liner to help prevent embarrassing leaks! These nursing pads are super absorbent and eco-friendly. bamboobies® Washable Nursing Pads come in two varieties. 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. This pack of both overnight and regular pads makes a great gift or registry item – the perfect thing to buy if you’re pregnant and not sure what you’ll need! Choose from either Light Pink or our Multi-color. Care Instructions: Machine wash on WARM & DRY COMPLETELY on MEDIUM heat. No fabric softeners. Use mild bleach solution if discoloration appears.