Klein Carbon Fiber Full Brim Hard Hat, Spartan Vented #60513True carbon fiber multi layered construction for great strength to weight ratio Class C, Type 1 Hard hat meets ANSI Z89. 1 2014 (R2019) (PLUS LT and HT rated) and CSA Z94. 1 15 (R2020) Large adjustable vents can be opened and closed to manage air circulation 6 Point suspension for stability and balance Unique suspension system features a flexible open frame design to provide optimal fit and improved air circulation Easy, one handed adjustment with