Free Overnight Shipping - The technologically-advanced 'Rocket-K' running shoe is perfect for your active lifestyle. Features Anne Kalsø® Negative Heel® technology to align the body naturally. Durable mesh upper offers breathable wear to keep your feet cool and dry. Anatomic footbed with shock-absorbing Gelron2000® to prevent impact from reaching the legs. Multiple density cushioning and lightweight midsole ensure lasting comfort. Ergonomic outsole offers stability and slip-resistant tread on a variety of surfaces. ; Vegan Society™ certified. Walking, Running, Cross Training, Oxfords.