Description For this revolutionary new boot, Blundstone worked with the University of Tasmania’s School of Health Science’s Biomechanics experts. The result is radically new from the ground up. All components in the construction of the RotoFlex range have been researched, tested and trialed to ensure better performing safety footwear. Specifications 100% metal-free and airport friendly. Fortalite® CSA Grade 1 Composite Toe Cap allows less transmission of heat and cold and has high electrical insulation. Fuel oil resistant sole with unique tread pattern and highly cushioned midsole. Injection molded TPU sole is highly resistant to microbes and water damage. Heat resistant to 140°. Removable antibacterial AirCell footbed with pressure cells that cushion and pump air under the arch and toes where sweat can build. Premium weatherproof leather ‘breathes’ for absolute comfort.