igozen 4 pack kids face masks nanosase g sports face masks bns poly spandex nano face mask. (kids 4 black) igozen <p>nanosase® by igozen<strong> u.s. license & trademark</strong> </p> <ul> <li> when first unwrap, all fabric mask typically have a new package scent. simply hand wash & air dry, this will eliminate the new package scent if any. <strong>"always wash new before wearing"</strong> </li> <li> poly spandex provides an extremely durable and stretchy fabric which will hold up very well with use and washing.. </li> </ul> <ul> <br><p ><strong>✅ frequently asked questions:</strong> <li><strong>q: what is nanosase g sports face mask cover?</strong ></li> a: g sports face masks are made with “bns” polyester spandex blend fabric and patented nano processing technology. <br><br>