I loved the 2150s for years, and was extremely disappointed with the 2160s because they were heavy, stiff and too large in the heel in both width and height. I was convinced they contributed to a few injuries I experienced during my training with them. Obviously I hesitated in purchasing the 2170s, but the phone rep convinced me that all of my complaints were addressed in this new version - and he was right! The 2170s are lightweight, flexible, and the heel fit has been tightened up. I've been running on them for three weeks with zero complaints except that I wish that there were more color options for the D width (which hardly qualifies as a complaint).
Feels true to size
Feels true to width
Was this a gift?:
Bottom Line Yes, I would recommend this to a friend