Half knee safety boot made of Ultimate full grain leather, water-repellent and breathable. Lined with GORE-TEX membrane, that offers high climate comfort in all working conditions and ensures durable waterproofness and high breathability, and Thinsulate® B600 for high thermal insulation. BOA® Fit System ensures agility, power and precision in movements by offering a perfect fit with its micro-adjustable dial, super-strong lightweight laces, and low-friction lace guides: designed for easy, precise and secure adjustments. ICON bicomponent PU/RUBBER Vibram® Fire & Ice sole: Esolight 1.0 polyurethane midsole with direct injection on the upper and Vibram® Fire & Ice rubber outsole. The special formulation of the rubber guarantees traction and flexibility at both high and very low temperatures, offering constant slip resistance even in extreme cold and ice conditions. Slip-resistance sole tested to the SATRA laboratories on metal grating and wooden scaffold boards. Protective TPU element on the heel for maximum stability. PZX fiberglass toe cap and antipuncture TX ZERO STRONG textile insert of last generation for extreme lightness, protection and flexibility.