I know it’s not made for running marathons, but I can say that it was very comfortable. I managed 26 miles in Florida heat and humidity comfortably. I got lots of compliments on it as well. It’s a little short, cause it was short on me and I’m only 5’2”, but perhaps you can wear leggings or shorts underneath. If I can run a marathon in it and be comfortable, you will love it for the parks. ❤️ (Note that I added my own belt to this dress.