Merrell Moab FST 2 Waterproof Women's Hiking Shoes Frost/Aquifer : The new Merrell Moab FST 2 Waterproof hiking shoes provide a lighter weight and comfortable feel for a wearing during your long outdoor adventures. This new addition features an athletic fit to it and lighter midsole to allow for quick progress along the trails. A molded arch shank and air cushion in the heel help to provide excellent support and shock absorption for all day comfort. Upper: Nubuck leather and mesh upper provides lightweight support and ventilation. Padded tongue and heel collar enhance comfort. Lace-up front offers an adjustable fit. Breathable mesh lining provides a smooth fit and airflow. Bellows tongue helps keep out debris. Midsole: Merrell M Select(TM) FIT.ECO blended EVA contoured footbed with organic odor control. Merrell air cushion in the heel absorbs shock and adds stability. Includes a molded nylon arch shank. Kinetic Fit(TM) Base removable contoured insole provides flexible support. Outsole: Vibram MegaGripA(R) offers high-performance rubber to take on tough terrain with durability, stability, and slip resistance. 5mm lug depth.