The Timberland PRO Gritstone is a back-to-basics boot for those looking for uncomplicated day-in and day-out performance on the job. Durable, rugged, and built to protect in electrical hazard environments, this work boot features a premium Timberland full-grain leather upper attached to a slip-, oil-, and abrasion-resistant rubber outsole using cement construction for flexibility. Its breathable, moisture-wicking mesh lining is made of ReBOTL fabric containing at least 50% recycled plastic and has an antimicrobial treatment for odor control.