Timberland PRO Gridworks 6 Inch Alloy Toe Waterproof Work Boot TB1A29V1214. Our Timberland PRO Gridworks work boots are designed to tackle freezing, oily, slippery, and tough terrains, featuring lightweight outsoles made with a cold-formula for enhanced traction. These boots offer excellent performance on the job site, including durable, premium Timberland full-grain, waterproof leather uppers with an internal waterproof membrane for optimal protection against water and blood-borne pathogens. The Anti-Fatigue Technology footbeds help absorb shock and return energy with each step, while the breathable, moisture-wicking lining made from ReBOTL material—comprising at least 50% recycled plastic—also includes antimicrobial treatment for odor control. Additionally, alloy safety toes and electrical hazard protection provide the added safety you need in these resilient boots.