Nua pads, with the new and improved design, are made of superior quality non-woven fabric with a super-absorbent core. The sanitary pads do not have any harmful chemicals, prints, or perfume on the top layer to avoid rashes and come with wider backs for full coverage. The pack contains three different sized pads for three different flows (heavy, medium, and light). Nua is Made Safe Certified by Safe Cosmetics Australia.