I actually weighed this shoe in my size 11 D and it weighed in at an even 11 oz which is quite light but still has a good high arch with strong stabilizer on the sole under the arch support so it is light weight but not "flimsy", which is important to me.  This shoe is very close for me to my beloved Asics Gel Turbulent which I have worn for 2 yrs and is 1/2 oz. lighter.  This shoe is from my experience as light as you can get and still have good stability.  I must clarify my report by telling you that I walk, not run much.  This shoe is just slightly smaller than my other Asics but it will be a fine shoe for me.  Some may prefer their Equation 6 shoes to be 1/2 size larger. Excellent heel and sole cushion for good impact protection, If that is what you want or need.  My preference would still be the Gel Turbulent which is only 1/2 oz heavier with better support.  ASICS, bring back the Gel Turbulent which you identify as the structured cushion technology.  The Gel Equasion is good but the Gel Turbulent is better for me and there is nothing in the new line that is the equal to replace it! A problem with the equation 6 is dirt and sand can not be easily under the screen cover over the material under which soils easily and is very soft.  You can't wipe the dirt off.  Dirt is thrown up over the toe area and through the screen material. I have decided after some use that I prefer a firmer more suportive shoe with less cushion and as time passes wearing this shoe I favor it less. Wear on the soft sole is excessive and I occasionally trip. I have already done a repair on the sole with super glue. This shoe surely is not my idea of that having a value of $80.  I no longer wear this shoe.  It seems to me that if problems start after 30 days with amazon, you are screwed on shoes. I better stick with Zappos. It seems to me that you can no longer depend on the quality of Asics and their prices have gone up substantially.  Sad. I contacted Asics and they told me to return the shoes to their office in Ca. for inspection at my expense.  It cost me $14.  I requested replacement with the Gel Exalt.  We will see. OK, Asics replaced this shoe with the Gel-Exalt as I requested.  It gives me much better support and is more like the Gel-Turbulent which I liked so much but was discontinued last year. Also it weighs 11 1/2 oz. in my size 11D which is the same as my Gel-Turbulent shoes that I have worn for 3 yrs. It appears to be a more durable shoe than the Equation 6.