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.