At first glance it looks sturdy with good support and traction, but the 13m size is quite narrow and therefore not suitable for a trail shoe. The ball of my foot slips off the edge and I have to TRY to keep my foot centered. I'm hoping the center will wear down over time and keep my foot more secure. Until then, these are home/town shoes. I would buy this brand again, especially if a large size was available or if I had heard their other line of discs tend to be wider.