Waterproof and breathable, Keen's Targhee II Mid offers four-wheel drive performance for day hiking with a light pack. A stability shank, shock-absorbing S3 heel, and EVA midsole provide stability, support, and comfort on the trail.. . ESS shank provides midfoot support for all-day comfort and torsional stability on uneven terrain. Dual-density, compression-molded EVA midsole provides cushion, stabilizes the foot, and allows natural flex. S3 heel (shock, suspension, stability) supports the foot on impact, dissipates shock, and reduces odds of twisting an ankle. Nonmarking rubber outsole features multidirectional 4 mm lugs for traction, grip, and safer descents. Keen.Dry waterproof, breathable membrane keeps water out and allows perspiration to escape. Waterproof nubuck leather and textile upper for durability and breathability. Removable metatomical dual-density footbed cradles the natural contours of the foot and provides excellent arch support. Keen.Protect rubber toe safeguards against abrasion and mild impact for durability and protection. Innovative lace design wraps the shoe around the foot for all-day comfort and support. Mid-cut height increases ankle support through canyons and over mountain tops. Fit tip: Keen finds this style runs about a 1/2 size small.