XGO 2 Piece Flame Retardant Balaclava OD Green Fits All 3FX54B9-OS-79. Contoured to face and the head fits close to both but does not constrict. Moves with the wearer for better mobility.It allows for unrestricted movement. Ideal for temps between 10 - 40 F. Specifications for XGO 2-Piece Flame Retardant Balaclavas: Manufacturer: XGO Gender: Male Age Group: Adults Hat Size US: One Size Color: OD Green Fabric/Material: FR Rayon Modacrylic Spandex Fire Resistant: Yes Weight: 6 oz Moisture Wicking: Yes Features of XGO 2-Piece Flame Retardant Balaclavas Compression FR Accessory Contoured Fit Patented blend of Modacrylic FR Rayon & Spandex ASTM D6413Standard No Melt/No Drip Superior Moisture-Wicking Quick Drying Ag47 Anti-Microbial Protection Clean Seam Next-To-Skin Comfort Durable and Breathable Wont Shrink Package Contents: XGO 2-Piece Flame Retardant Balaclavas Phase 3 FR 2 Piece Balaclava