Thirsties Organic Cotton Doublers are the answer to parents’ quest for added protection! Looking to boost absorbency for a heavy wetter or nighttime diapering? Try our Organic Cotton Doublers comprised of four soft, absorbent layers of 100% GOTS certified organic cotton. Need a stay-dry option while boosting absorbency? Doublers can be used with any current cloth diaper system for heavy wetters or nighttime use, and three different sizes offer customized fit.