These super absorbent reusable pads are designed with wings and a snap closure to prevent the pad from slipping around too much. (Tip: wearing snug fitting underwear will also help pad from slipping around.) They have a water proof layer on the outside to prevent leaking and against the skin is a special fabric to wick moisture away from skin allowing for a dry feel. Sandwiched in between these two layers are layers of organic bamboo fleece for absorbency. Organic bamboo is naturally anti-microbial meaning that it prevents the growth of bacteria, making for a more sanitary menstrual, postpartum or incontinence pad.