Buttermilk Mountain Vintage Ski PatchButtermilk was Aspen's original beginners ski area but now has become one of the most famous ski areas in the world for hosting the X Games for the past several years. The half pipe is one of the biggest anywhere. Buttermilk has 3 areas, main Buttermilk, West Buttermilk and Tiehack. Iron on or sew this vintage badge on your jacket, backpack or a hat. Or give as a gift to any Aspen skier. 2 1/2 inch diameter.