King Rocks Men's 6" Water Resistant Steel Toe Work Boot with Oil/Acid Resistant Outsole for Industrial & Construction Durable Full Grain Leather - Tough and rugged leather uppers withstand abrasion and is easy to break in Synthetic sole ASTM Certified - Steel toe cap has been impact tested to standard F2413 M/I-75/C-75 Traction, Comfort, & Protection - The sole design includes complex grooves and shock absorbing pressure points to alleviate fatigue and support the balance of your feet Anti-Fatigue - steel shanks provide extra support around the arch of your foot, a necessary feature for heeled work boots. Shanks help alleviate the pressure caused by standing on rigid, uneven surfaces, climbing ladders, or kicking a shovel. Not only do shanks provide comfort, they can help protect your feet from being punctured. Wide Toe Box - Creates extra room for your feet and prevents pain experienced in most steel toe work boots Insulated - Lined fabric wicks away sweat and moisture to prevent odors and provides more warmth during cold days