From Red Bull Double Pipe in Aspen to the Swiss sidecountry, Markus Keller continues to solidify his rep as one of the most underrated overall riders on Earth. Dude just rips everything. Here he pulls the swallow tail out of his quiver to give us all a quick fix of the deep stuff we are all jonsing for. Keller is joined in this edit by DBK who is always down to put on a show. Then there is the ender, which is one of the best double corks ever done off a booter to date. Watch and repeat.