The updated Brooks Ravena keeps its previous midsole and outsole, while making an important adjustment to its guiderails technology. The guiderails are now co-molded to eliminate previous glue seams that contributed to a stiffer shoe. What this means for you is a more flexible lightweight stability shoe that will move more naturally with your foot. Flexibility and lightness is also enhanced through the use of a new lighter mesh on the upper. The Ravena 11 retains its 10 millimeter offset and loses about half an ounce of weight. If you need a lightweight stability shoe for faster days and racing the updated Ravena is definitely a model to check out.