PDG is short for Patrouille des Glaciers, a famous ski mountaineering race hosted by the Swiss Army. Designed for such races, the Dynafit PDG alpine touring boot could be the perfect blend of weight, price, and skiability. At just 125 grams (4.4oz) more than the Dy.N.A. EVO race boot, the PDG weighs in at only half the price. It features the same one-motion Ultra-Lock ski-walk buckle system that the Dynafit made popular on its race boots and recently on more general touring boots. Quick transitions are joined by fast descents, as you can actually ski with confidence on these lightweight boots.