Black ACU Reversible Neoprene Facemask is made up of 100% polyester. Face mask is reversible to solid color black. Attached to neoprene rubber. One size fits most. Adjustable hook and loop closure on back. Has eye and nose opening and small holes for breathing. Great for skiing, bitter cold winters, windy mornings and most snow conditions. Great way to camouflage face with Army Comabt Uniform.