Switched from Asics Nimbus (10mm rise) to these to get the lower rise (3mm) to eliminate knee pain during marathons and it worked! I didn't have time to do any training runs (big no-no) but laced them up and ran a marathon in them, literally. Great shoes; no knee pain, less foot soreness, extremely comfortable all around and lighter. I did get a significantly lower price on another website, but the customer service chat person here was very helpful. Love these shoes!