The diaper itself is made out of a layer of TPU (Thermoplastic polyurethane), which is a water resistant/proof on the outside. (the printed material) The inside of the diaper is made up of a layer of microsuede which is a stay dry material that is soft and breathable, it helps wick moisture away from babies bottom to help with the wetness feeling that can lead to irritation. These diapers also offer "rise snaps" which help with being able to adjust the leg holes to fit from small to larger babies, along with stretchy B shaped wings to help with perfect fit! Being an AIO (all in one) it has sewn in inserts, 1 flap style and one sewn in insert. These layers are made up of 2 layers of suede cloth, 3 layers of microfiber and 2 layers of bamboo cotton.