Altra Lone Peak 9 Now 25% Off $140 $105 at REI Key Specs Intended Use Trail running, hiking Weight per Pair 1 lb. Maggie SlepianThe lugs are slightly shorter than other trail shoes, with just 3 millimeters of depth (compared to 4–5 for similar trail shoes), but I don’t notice a lack of traction, and I appreciate the lighter and more flexible feel. For comparison, my go-to road running shoes (the ) have a 37 millimeter heel stack, and most Hoka shoes have at least 32 millimeters. This is part of the reason I prefer the Lone Peak 9s for hiking instead of trail running. Final ThoughtsThe Lone Peaks are advertised as a trail running shoe, but I wear them almost exclusively for backpacking.