MSA V-Gard Slotted Caps and Non-Slotted Hats meet all applicable requirements for a Type I (top impact) helmet as outlined in ANSI/ISEA Z89.1-2009 (Class E), and CSA Z94.1-2005 with 1-Touch® and Fas-Trac® Suspensions (Class E). Available in slotted cap and non-slotted hat style. V-Gard Caps and Hats meet the voluntary standard for low temperature [LT] and reverse donning as prescribed by ANSI/ISEA Z89.1-2009. Look for the official reverse donning logo to determine if your hard hat may be worn backwards without voiding approvals.