Uni-Ridge Design Protects Wearer From Falling Objects; ; Lightweight, durable Topgard® slotted caps are built for use by utili-ties and other industries, where head protection from falling objects is necessary, along with good dielectric properties (non-conduction of electrical current). Limited resistance to top impact or penetration is retained through a wide range of temperatures.; ; Available in standard (6 1/2 - 8) size with 1-Touch ™ or Fas-Trac® suspension. Topgard® caps meet or exceed the applicable requi-rements for a Type I helmet (top impact) as outlined in ANSI Z89.1 2003 and CSA 294.1-2005, Class E.