Discount for dated stock: Oct 2019. The Zero Pinnacle ZERTEC helmet has integrated Koroyd technology for maximum energy absorption, making this one of the most advanced industrial helmets available on the market. Koroyd significantly reduces the impact a worker could sustain (EN12492) when working at height or industrial workplaces, reducing the risk of potential head and brain injuries. The Zero Zertec Vent is certified to hybrid industrial and mountaineering standards for advanced head protection, (EN12492 & EN397) with an ABS superior Thermo Material shell exterior combined with energy-absorbing Koroyd sandwiched between high-density EPS polystyrene.