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 Merrell mark. Full bumper protection at the toe and around the heel. Proven Vibram Multi-Sport sole with TC5+ Rubber compound for grip and durability. UPPER / LINING: Dura leather and mesh upper Bellows tongue keeps debris out Synthetic leather toe cap and heel counter Breathable mesh lining treated with Aegis antimicrobial solution resists odor MIDSOLE / OUTSOLE Molded nylon arch shank Compression molded EVA footframe provides cushioning Merrell air cushion in the heel absorbs shock and adds stability 5mm sole lug depth Vibram Multi-Sport Sole/TC5+ Rubber