Petzl's performance driven Aquila Harness handles the hardest sport climbs and alpine ascents. FuseFrame technology uses thermo formed foam to give you an incredibly slim, superlight, and surprisingly comfortable ride. Like the waist, Petzl's DoubleBack HD buckle comes in a slim style to minimize bulk. Adjustable leg loops accommodate summer or winter outfits. Because the Aquila is Petzl's high end harness, Petzl reinforced the tie in loops for long lasting durability. This harness has four gear loops, two rigidsides and two flexible rear that collapse when paired with a backpack. CariTool ice tool holders and a rear loop for a haul rope ready you with plenty of gear hauling capability on long alpine routes.