This is the first New Balance model that I've been able to feel the effect of the Abzorb shock absorbing insert in the heel area. I'm a senior citizen and my joints don't work quite as well as they used to, so walking with shoes without shock absorbing soles is pretty jarring. I average over 5 miles a day on concrete side walks. I wore through the outer soles on the last pair of these that I had, and they were still absorbing the "heel slams". Also, since I walk 365 days a year, rain or shine, the fact that the leather uppers is almost completely waterproof is a bonus.