Our endless summer essential now with highly evolved breathability for hiking or biking the trails. A lattice-like overlay of Dura leather strapping supports and protects while enhancing the open-window venting of the breathable mesh upper that is a Merrill mark. Full bumper protection at the toe and around the heel. Proven Vibram Multi-Sport sole combines Trek and Super Trek rubber compounds for grip and durability. Slip lasted construction. Dura leather/breathable Ventilator mesh upper. Breathable mesh lining. Synthetic leather toe bumper/heel counter. Breathable Ventilator bellows tongue. 7.5mm narrow gauge webbing. 4.5mm anatomical footbed. Nylon 6.6 injection molded arch shank. Compression molded EVA footframe. Air Cushion midsole. 5mm sole lug depth. Vibram Multi-Sport sole/trek & Super Trek rubber.