The Women's Moab FST Mid Gore-Tex Boot from Merrell utilises a Gore-Tex lining to ensure breathable, waterproof protection on long days on the trails. While this offers a healthy and dry environment for your foot, much of the underfoot support comes from a moulded nylon arch shank with a Merrell Air Cushion heel, which helps to absorb shock and promote stability so as to avoid the chance of foot fatigue. A Gore-Tex waterproof membrane repels moisture and ensures breathability for all activities. A Merrell air cushion in the heel absorbs shock and adds stability. Dirt and debris is kept out by the bellows tongue. The Vibram MegaGrip outsole provides the best combination of stickiness and durability for sure traction on both wet and dry surfaces.