The breakthrough 2 is all about sleek speed in a taut, responsive ride. Power grid midsole responds to every foot strike. Break speed limits and pr's in the brand new breakthrough 2.
• Road running shoe with chevron-knit mesh and seamless overlays
• 8mm heel-to-toe drop
• PowerGrid heel-to-toe cushioning
• IBR+ blown rubber cushioning
• XT-900 carbon rubber outsole