- When designing new tires, the entire production process and the life cycle of the product must take the environmental factors into account. Starting from the material selection, the new Hakkapeliitta R5 has been designed to leave a smaller carbon footprint. The new, eco-friendly Green Trace compound offers safe and green driving due to ingredients like natural rubber, recycled steel, plant derived oils and pine resin. We're proud to say that one third of the new compound consists of renewable and recycled materials. The new Hakkapeliitta R5 is durable, sustainable, and wear resistant, while being the most energy efficient winter tire in the entire world, says Katriina Markkula, Nokian Tyres' Development Manager.