This listing is for a MSA V-Gard Hard Hat. These hats fature a polyethyene shell and come with a 4-point Fas-Trac Ratchet suspension system. Ratchet Suspensions are sized by adjusting a small knob. Standard size fits 6 1/2" - 8" head sizes. This hat is available in 6 different colors: White, Yellow, Blue, Orange, Red and Green. Please indicate your color choice when purchasing. V-Gard Caps meet ANSI Z89.1 Class G and E.