Arcteryx Gamma Rock Pant - Men's Black XL Four-way stretch Fortius 1.0 fabric reinforced with Burly Double Weave knees and seat (hybrid mapping) Articulated patterning and gusseted crotch allows full mobility Two zippered front hand pockets and a fly zip Low profile metal hook waist adjuster; chalk bag attachment window Seamless inner lower leg reduces crampon snagging; stowable boot lace hooks