1. Clearly marked as FR FR tag on side seam. SIZE: 25*35CM. These FR neck gaiter is stretchable One Size so it can fit any size head. 2. Arc & Flame Resistant for Life - This 7 oz material is a soft, inherent FR 100% Cotton. They will remain arc and flame retardant regardless of the washes and wear cycles. These neck gaiters are NFPA 70E Compliant, HRC / CAT 2, EBT = 12 cal/cm�² and meet ASTM F1506. 3. Safety doesn't have to be boring - FR face mask were developed for an electrical utility whose lineman did not want to wear a respirator or balaclava to keep the creosote off their face in Texas summer and winter . Since launching these fire retardant masks, welders, oil & gas workers, miners and electricians all love to wear these for year round cool and protection. 4. Skin safe & Lightweight - This FRC fire resistant fabric is safe to wear directly against your skin when at work. The flame resistant materials used are non-allergenic and will not react with your skin. 5. Wash & Care - Machine Wash and the water temperature should be below 40°C/ 104°F; Hand wash under normal temperature.Tumble dry below 60°C/ 140°F. Do not iron or dry clean.No bleach laundry detergent . No distortion or color fading after multiple washings.