This is my second pair of the Launch 4 and absolutely love them. I have always ran with Saucony shoes and tried the Launch 4 to try something different. I'm so happy I gave these a try. I run 45-50 miles a week and have ran 3 marathons and training for my first half marathon. These shoes fit perfect and feel great. The only negative I have is I wish they had a little more padding besides that love them.