Made with lush layers of 100% cotton terry and 100% cotton fleece. Snapless fitteds are to be used with a snappi and gives a lovely customized fit. Flexibility and customization of a Snap in snake insert always allows for optimal absorption in the wet zone. Newborns need to be changed much more frequently and therefore fitteds are a great option for daytime use as well. Covers are needed for fully absorbant nappies.