The Stay Dry Natural Duo Insert by Thirsties is an easy to use All in Two system. Create the All-in-Two Diaper by adding the Stay Dry Duo Inserts to Thirsties cloth diapers. The top insert of this two-insert system is constructed of two layers of fast-absorbing microfiber terry and topped with our stay-dry, stain-resistant microfleece. Bottom insert consists of 5 layers of our super-absorbent 55% hemp - 45% organic cotton jersey