The merrell all out terra are vegan friendly mens running shoes with a stamina friendly 6mm diamond pattern making them suitable for any trail they have an upper made of tpu and breathable mesh for great ventilation and maximum comfort and feature reflective details to keep you safe while running in the dark made to give you a combination of stability and responsiveness the shoes offer trailprotect pad in the midsole for improved under foot protection as well as a high performance vibram ru