MSA V-Gard Hard Hats are made of lightweight molded plastic. MSA V-Gard hard hats feature advance styling in either cap or hat style. MSA V-Gard Caps and Hats are available with 4-point Fas-Trac (ratchet) suspension. MSA V-Gard Hard Hats meet or exceed the applicable requirements for a Type I helmet (top impact) as outlined in ANSI Z89.1 1997, Class E and G (formerly Class B and A).MSA caps and hats packed 20 each per case. Medium size is 6.5 - 8