The supportive Patagonia Drifter A/C Mid Men keeps cool and steady on the trail to Beehive Basin. Breathable components of the boot include a durable air-mesh/waterproof nubuck leather upper, a bellows tongue that sheds debris, and a polyester air-mesh lining that circulates airflow. The 15%-recycled EVA anatomical footbed provides cushioning, comfort and support, while the Bi-FitTM 80% post-consumer recycled polyurethane waterproof insole board offers support and stability underfoot. The Patagonia Drifter A/C Mid Men is made with board-lasted construction for additional support and durability, and a Vibram® Trail Ecostep® outsole (with 30%-recycled rubber) for excellent traction.