Ariat Sierra Wide Steel Square Resistant Toe Work Boot Stay protected in unpredictable work areas with the Sierra Wide Square Toe Puncture Resistant boot by Ariat Premium full grain leather upper with six-row stitch pattern. Interior mesh lining for added comfort and breath ability. Good year welt for superior durability. Cushioned foot bed features Ariat's exclusive ATS Technology for the ultimate combination of flexibility, stability, and cushioning. Puncture-resistant, metal-free SWEN-FLEX insole board, a metal-free technology providing more foot surface protection and meeting or exceeding the same standards as conventional steel plates. Wide square toe for more comfort and mobility. 90-degree heel. Duratread out sole is made of a heavy-duty rubber that is oil, slip and abrasion resistant and is highly resistant to barnyard acids and high heat. Puncture resistant (PR) ASTM F2413-11 rated. Steel toe is ASTM F2413-11 M/I/75 C/75 EH rated. Imported.