The Index Short has been discontinued. If you're looking for something new, check out the best active shorts for 2020.
Mountain Gear says:
Make your climbs this summer that much more comfortable with the Index Short from Outdoor Research - climbing-specific shorts that extend just below the knee for added protection from rough rock faces. Durable stretch fabric allows you to move comfortably while preventing abrasion and articulated knees allow you to use your full range of motion for those tough heel hooks.
Historic Range: $59.95-$80.00