V-Gard Protective caps from MSA consist of a polyethylene shell and suspension system working together as a protection system. V-Gard caps meet or exceed the applicable requirements for a Type I helmet (top impact) as outlined in ANSI Z89.1 2005, Class E and G. V-Gard caps are not specifically designed to protect against lateral blows from the front, side or rear. 20 per case. The Staz-On suspension (H3454230) is a sliding mechanism for sizing. The Fas-Trac suspension (H3473332) is a ratchet used for sizing.