Stay warm and protected in our FR double-layer Work-DryÂ® balaclava. Made of heavyweight, two-ply 5.5-ounce FR knit: 48% modacrylic, 48% TencelÂ® and 4% spandex, it features Work-DryÂ® moisture-wicking and fast-drying technology with anti-odor control. Full facial protection extends below the neckline. Face mask pulls down below the chin when not needed. Flat-seam, two-ply construction enhances comfort and warmth. Carhartt FR label sewn on back. Meets NFPA 70E standards. Flame-resistant fabric by Innovative Textiles, Inc.