© James Appleton

At the 2019 Spartan Ultra World Championships in snowy Åre, Sweden the temperature dipped to as low as -30° degrees, but this didn’t stop women’s champion Rea Kolbl from smashing out 70 miles across 350 obstacles and 28,000ft of elevation, during the 24-hour race.

How did she do it? I quizzed the dryrobe ambassador about her training and fuelling – after first asking her about her experience racing the 800km Eco-Challenge team adventure expedition race in Fiji last September.