Constructed of polyethylene Soft poly browpad absorbs moisture Rain trough provides extra protection from snow, rain, dust and dirt Accessory slots accommodate a variety of optional attachments Available with standard four-point suspension or four-point Flex-Gear™ ratchet suspension featuring two vertical adjustments Wide 0.75 in
(1.9cm) crown straps and low nape strap keep caps securely in place Compliance ANSI/ISEA Z89.1-2009, Type I, Class E & G and CSA Z94.1-2005, Type 1, Class E & G requirements.