The ASICS Men's GEL Nimbus 13 Running Shoes are the 2011 version of ASICS popular long running Nimbus line. The new models come with a couple of simple but important changes that make this year's edition better than ever. First off is the improved side to side stability that will give you increased confidence and ankle support when running on uneven terrains. Secondly, the Nimbus 13 has been constructed with a slightly lower profile heel, meaning you'll get a running experience that's closer to the barefoot style that many experts say is more natural and better for the overall health of your feet.