Nike Dri-FIT ADV technology combines moisture-wicking fabric with advanced engineering and features to help you stay dry and comfortable, Nike AeroBill technology combines breathability with sweat-wicking comfort to help reduce distractions Woven fabric is lightweight and durable, SwooshFlex elastic closure stretches for a fit that feels just right, Structured fit, Embroidered eyelets, Body: 100% polyester. Back of Front Panel: 100% polyester, Hand wash, Imported, Not intended for use as Personal Protective Equipment (PPE).