Balboa/Zan Face Neck Cover Mask - Fleece Half,fc002fm-fleecehalf-osfm" /> 100% Polyester Made of 100% polyester. ONE SIZE fits most with adjustable velcrorized strap closure. Neonprene half face measures 6 inches high, 22 inches long. Neck measures 8 inches long, 20 inches wide. Wind and water resistant material, great with goggles