X Games welcomes back fans to Buttermilk in Aspen, Colorado for the 21sX Games Aspen is the world’s best action sports event showcasing the biggest names in snowboarding and skiing. The three-day event is FREE to the general public and will include sponsor activations, live DJ performances, and world-class competitions featuring Men’s and Women’s Ski and Snowboard SuperPipe, Slopestyle, Big Air, and Knuckle Huck.