I bought a pair of Ninjas originally for Karate training in the park and then noticed that the bands on the left foot were coming away from under the sole. A replacement pair were sent but took 3 weeks to get here.

I was really excited about the prospect of the Terras for "rugged ground" as all the roads around here are gravel. I ordered a pair from Amazon and again one of the supporting bands was not attached for about 2 inches. I called and emailed to report this as they need replacing. I ran in them this morning as I had no response to the issue. I can say categorically as someone who used to run barefoot 35 years ago that they are not up to gravel roads. half inch pebbles protrude through the sole and bruise the ball and instep. I can see these are fine for grass, sand rock and many other surfaces but not gravel roads. I can recommend them otherwise as long as they fix the the quality.

The soles are probably the same thickness for size 12 which I take and the small sizes. Likewise the wearer will not feel the pebbles through the soles if they are only 110lbs as opposed to 190lbs as I am. A thicker sole on the larger sizes would be good.