The Sphinx emerges like a ship's prow from waves of peaks. At 10,800 feet its summit block is no skyscraper, but don't let that fool you The Sphinx is an all day commitment of lung-burning goat paths and gully scrambles. Fifteen miles, unpredictable weather, 4,500 feet of elevation gain, and a deceptively long completion time make it one of our staff's favorite shake-down hikes for evaluating new product. All-day comfort, stability, and breathability in the Sphinx Mid? Check! Awe inspiring views? Double check!