What is the difference between insert and prefold? Cloth diaper insert is rectangular shape with multiple layers sewn into a thick pad to absorb moisture. It can be stuffed into the pocket or simply laid on top of the inner layer against the baby's bottom Prefold is a flat diaper with multiple layers. The middle section is generally thicker than the two outer sections. It is wider than insert that you fold into the shape you prefer before putting on your baby Both of them are designed to be used with cloth diapers to absorb moisture and contain the solids. Replace a new insert or prefold at diaper change and keep your baby's bottom clean and dry. Use more than one to provide extra absorbency for overnight or long hours use. A Must-have baby item essential for cloth diapering. Our Prefolds are 100% certified organic cotton in a twill weave. 4 x 6 x 4 ply diaper service quality (DSQ). Extremely soft, absorbent, and durable, suitable for heavy wetters and overnight use. Our Cloth Diaper Insert is made of 3 layers of Microfiber. This environmentally-friendly material, composed of many tiny strands, is 40 times more absorbent than cotton – and less bulky too. Cloth diapering is perfect for families with multiple kids in diapers. The cost savings are significantly reduced, never running out of diapers to use even though the stores are closed. Save the landfill and are good for your baby's delicate skin.