FitFlop's F-Mode Flow shearling-mix trainers add seasonal appeal to the style's signature smart engineering, blending a mixed-material upper and soft shearling lining for natural insulation with a chunky Microwobbleboard midsole. This signature smart technology is designed to work with your body's natural movement, not against it, and is softly padded throughout with anatomical contouring that helps to optimize your energy levels.