The Klein Tools Tradesman Pro Ironworker and Welder Backpack's exterior is made of flame resistant 1680d ballistic weave and leatherette materials for durability. This 27 pocket tool bag fits a 24-Inch to 36-Inch connecting bar, welding helmet and hard hat and has storage for additional tools, gear and safety equipment. This tough backpack with fully molded bottom, aircraft cable reinforced handle, and hard front pocket was designed with the professional ironworker and welder in mind. 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.