Other reviewers have pointed out that the shoes don't drain very well after running through water. That's true. Also, the traction is great, but can cary mud with them so when transitioning to a smooth surface in an OCR (any kind of verticle wall) you'll have a slick hold. Other reviewers pointed out that the arch traction is great for rope climbing, but I've found the opposite. All in all, they work great on the trail, and have stood up to some beating on the course.