Flite™ is a Revolution in Protective Footwear. Made from Aerex1.5.5TM – a proprietary, chemical-resistant, thermally-insulative, microcellular polymer, resulting in boots that are over 40% lighter compared to most steel toe PVC and rubber knee boots. Superior chemical resistance to fats, oils, hydrocarbons, certain acids, and caustics makes Flite an excellent choice for food processing and petrochemical applications. n Composite safety toe meets ASTM F2413 M I/75 C/75 n EH** and will not set-off metal detectors. n Durable, seamless upper is 100% liquid proof. n Slip-Resistant, nitrile rubber outsole provides superior n grip on dry, wet, and contaminated surfaces. n Tiny air bubbles trapped within the material n keep feet warm in the cold and cooler in the n heat. n Aerex 1.5.5TM is anti-fatigue since every pound n reduced in footwear weight is like 5 pounds off n your back and 5% less energy expended*. n Calf-Relief Topline (CRT)™ is not only stylish, it n provides easier on and off and roomier calf space n Beveled heel for reduced back and leg st