Minimalist 4 mm heel-to-toe drop (difference in height from heel to forefoot) for a closer-to-the-ground feel�on the spectrum between barefoot running and traditional maximum-cushioning running shoes. Rock Stop embedded into forefoot provides protection from sharp rocks and debris, minimizing pressure and dispersing shock energy. Vibram outsole provides maximum surface contact and multidirectional traction. * Innovative REVlite foam midsole offers a lightweight, responsive ride and durability without sacrificing underfoot cushioning or stability. Synthetic/mesh upper provides lightweight comfort, support, and breathability. Debris-free construction eliminates waste, preserving raw materials, and providing an environmentally preferred manufacturing solution. * Designed to be worn with or without socks. Ideal for neutral runners as well as those with gait issues or chronic injury to conquer by learning better form. Fit/last: standard heel width, wide forefoot width, low instep height, shallow toe box height. * NB Minimus shoes are a tool for achieving better running form, strengthening feet and calves, and increasing ground feel and control.