When your favorite workout has you traveling fast well beyond where the sidewalk ends Siren Sport Leather is a great choice. It’s an outdoor athletic shoe with uniquely feminine styling. Uppers combine pigskin and synthetic leather so they’ll take a natural beating for years. Breathable mesh lining to keep feet cool and dry. Vibram® Siren&$reg; sole adds the stability and traction you need for off-road running speed hiking or trail biking. Q-Form&$reg; triple-density molded footframe promotes healthy alignment for a woman’s stride.