Breathable, wicking mesh upper * Drainage ports * 15% recycled, perforated EVA footbed molds to the contour of your foot * Moisture-wicking Dri-Lex footbed cover and lining * Nylon arch shank * 4mm heel-to-toe differential * Adapted to trail running in creek country, Patagonia loads this shoe up with water-management strategies. * Gender-specific EVA footframe encourages midfoot strike