Hard Hat Liner Garment Type Liner Outer Material Cotton/Acrylic Areas Covered Ears Head Neck Adjustment Type Button Outer Color Blue Lining Material Cotton Number of Layers 2 Size Universal Closure Type Button Attachment Type Hook Loop Includes (2) Piece Cotton Top with Detachable Knit Nape Fabric Weight 210 g/sq m Reusability Reusable Includes Neck Shade No Standards US CFR 16 Part 1610