Carhartt built its new ultra-tough Steel series workwear to flex and stretch like athletic gear

I have a pair of Carhartt’s iconic double-knee work pants that are basically indestructible. I love them, but the rigid material isn’t very flexible. Carhartt’s new Steel Series is the company’s attempt to match the stretch offered by athletic wear without giving up abrasion resistance. The six-piece line goes on sale today at Carhartt.com and select retailers, starting at $89.99 for the Relaxed Tapered Steel Buffalo Pant and topping out at $209.99 for the Steel…