Klein Tools KONSTRUCT series Hard Hats are designed and engineered for the harshest environments. Constructed using lightweight fiber-reinforced polymers to withstand radiant heat loads up to 350-Degree Fahrenheit (176-Degree Celsius). Classic look, designed to enhance comfort and fit features a 6-Point suspension and removable, washable padded sweatband and top pad. With mounts for attaching Klein headlamps and accessories - no strap needed!. For more than 160 years, Klein Tools has manufactured premium-quality, professional-grade hand tools that deliver the performance, durability and precision needed to get the job done right. Our family of engineers, workers and craftsman continue to put six generations of expertise into every tool we create by using only the highest quality materials, superior workmanship, and keeping manufacturing as close to home as we can. Klein isn't just the name of our company, it's also our family name. And since we're an American company that's family-owned and family-run, you know you can count on us to be here tomorrow. Klein Tools doesn't just make great products, we make great products that stand up to the demands of the professionals who use them every day ... Since 1857.