Ever since I had a Knee injury 4 yrs ago I have had to wear support shoes. I tried various makes and models and the Saucony grid omni4 was the most comfortable for me. Iwent through 6 pairs of them as I change my trainers after 500 miles. Them the omni5s came out and I had 3 pair of those.I bought the omni 6s last August and am now on my 2nd pair and they are the most comfortable and stable shoes I have ever run in. I am still running in a pair of 5s as they havn't reached 500 miles yet, but I look more forward to putting on my 6s