I was a huge fan of the Gel Noosa Tri 9's, but thought the Tri 10's looked really sharp. So, I purchased a pair in Mint/Lavender/Turquoise. I want to start off by saying that the quality of these sneaks is exactly what I expect from Asics. These are constructed really nicely, and it's easy to see that they are going to last a long time. I've already ran about 100 mi in them already in both wet and dry conditions, and they still look brand new. However, I don't feel that they offer near as much support as my Tri 9's. I know this is a hot topic, as some people have commented that they felt these offer more support than the Tri 9's. Unfortunately for me, I can't run more than about 3.5 miles in these until I feel as though I'm just running on hard boards. I think these are lighter in all the wrong places for me. I can definitely see that the soles are not as thick as the Tri 9's. I know pronation is not an issue here, so least I can clear that out. Sadly, these are destined to be my short run and &#34;take the dog for a walk&#34; shoes. My best suggestion if you're on the fence with these? Buy them and try them. What works for others may not work for you.