Description I took my huaraches out to Hansen Dam in Los Angeles and put them through some thorough testing today. I ran about 10 miles on the rockiest trails I could find. My 5mm thick, four ounce Vibram-rubber soled sandals worked perfectly. You can usually trust indigenous design when it comes to active footwear. These sandals and others similar have been around for 1000s of years, and I know why. They have no frills, just exactly what you need and not a bit more. Elegant design. What I am also finding is that nothing gets trapped under the foot. The strapping system is the very minimum, and with no straps and other excess, the stones, sand, etc., don' t stay in. Barefoot Ted www.BarefootTed.com