Marathon Black 40gMarathon Black 40g is a hard and durable glide wax developed for long distances and demanding conditions. With a black additive, friction from dirt and particles in the snow is reduced resulting in better glide and longer durability. The wax works very well in warm conditions, but also performs well in the cold. It can be used on its own as a racing wax or as a base for topping. For extra durability, the wax can be reheated after 10 minutes of