Keep your baby girl safe in our infant one-piece from the very beginning, with our Infant Girl's ZnO Sun Romper offering coverage that extends to wrists and ankles. The sun romper features our latest technology development called ZnO SUNTECT®. Blending the comfort of natural cotton with the sensibility of viscose from bamboo and the therapeutic benefits of zinc oxide, this baby romper is perfect for every activity under the sun! ZnO SUNTECT® embeds millions of tiny particles of zinc oxide -- the same ingredient that is used to block UVA & UVB in better sunscreens and to treat mild skin irritations and burns -- into every fiber. These ZnO particles cannot wash or wear out.