If you think about it, it does make sense. Tires are strong and every skate-shoe company wants their shoes to be strong! The original Marana was an incredibly durable shoe, but contrary to most skate shoes, the upper was so long lasting that the 400 NBS rubber outsole could not keep up. So etnies joined forces with Michelin to translate the performance and durability of Michelin tires to the outsole of a shoe. Watch Chris Joslin put them to the test right here!