Elbeco's finest. For more day-to-day comfort, carefree good looks, and the advanced spill-resistant protection of NANO-TEX™ Premium 65% polyester / 35% combed cotton, poplin weave with Nano-Tex™ fluid-repellant technology UV 40+ protection shields your skin from the sun; keeps the fabric from fading. Nano-Tex™ advanced, breathable nanotechnology permanently resists spills, stains, & fluids of all kinds Completely machine washable. Permanent pleats and Nano-Tex protection will not wash out. You stay dry and comfortable while your garment just keeps looking good Midnight Navy is the slightly darker replacement color for Dark Navy.