ltr74

I've heard similar complaints about the sprints on other forums. I think the Sprints have a 2mm sole while the KSOs I run in have a 3.5mm sole. Maybe that's why you have issues with rocks and the heat and I've never had a problem with either. I don't know about the months of breaking in though. Mine took about 3 weeks to…

I love my VFF KSOs. At 230 pounds, I am not a light runner and always had trouble running in normal running store fitted shoes, knee pain, ankle pain, tendonitis, etc. Now that I switched to the KSOs, I've had none of those problems. I have had blisters and strained one muscle from running too far, too soon with them but…