Timberland Pro Gridworks 6 Inch Waterproof Work Boot TB1A1KRQ214. Our Timberland PRO Gridworks work boots are built to tackle freezing, oily, slippery, and rough surfaces, featuring lightweight outsoles with a cold-formula designed for traction. They offer excellent job site performance with tough Premium Timberland full-grain, waterproof leather uppers and internal waterproof membranes that provide optimal protection against water and blood-borne pathogens. The boots also feature Anti-Fatigue Technology footbeds that absorb shock and return energy with each step, along with breathable, moisture-wicking linings made from ReBOTL fabric, which contains at least 50% recycled plastic and an antimicrobial treatment to maintain freshness. Additionally, these durable boots offer electrical hazard protection for enhanced safety.