Forma Terra Evo Motorcycle Boots - BrownForma Terra Evo Motorcycle Boots If you are adventuring further away from paved and well maintained dirt roads, your feet will need more protection than traditional adventure touring boots. The new Terra Evo's 'Ideal welt' sole has increased rigidity for a higher level of off road protection, and also provides more durability for long distance stand up riding. Heels and toes get external PU for tougher impact absorption and improved rider protection.