What Our Gearhead(R) Experts Are Saying:"I put the Sertig III Low GTX through a full day on a rocky trail with a creek crossing early on, and my feet stayed dry and comfortable the whole time. The wider fit made a noticeable difference on the descent when feet tend to swell, and the midsole has a real bounce to it that keeps things feeling fresh late into the day."The trailhead is barely visible in the rearview mirror when the terrain starts asking questions, and the Mammut Sertig III Low GTX is already answering them. Mammut shaped this shoe around hikers who need reliable waterproof protection without the bulk of a traditional boot, wrapping a breathable double layer engineered mesh upper around a full GORE-TEX membrane that keeps moisture out while letting heat escape on the climb. Underfoot, the high rebound Critical EVA midsole delivers a cushioned, lively platform that absorbs the chop of uneven ground and gives something back with every stride. The Ortholite insole holds its shape across long mileage, the Mammut Swiss Design outsole holds its grip across wet rock and loose trail, and the wider fit keeps things comfortable from the first switchback to the last descent. For day hikes that start simple and end somewhere more interesting, this shoe is ready for all of it.