I really LOVED these shoes, initially. They feel amazing and helped my get through a 10 hour work day on a hard concrete surface. They don't hurt my feet what-so-ever and they actually helped with my back problems quite a bit. My only issue with them was with the stitching of the two different materials near the baby-toe area. On BOTH of my shoes, there is now a nickel sized hole. This began 2 months after purchase. I've never ran in them like intended. These have merely been walking shoes for work while I'm on my feet all day. My toe nails are short, so that's not the cause. It's simply poor placement of the mating of the two materials. You've got the tougher toe strip that you see in the pictures and then you've got the lighter, breathable, web-like material beyond that. Where those two materials are stitched together, it doesn't hold. I've attached a picture of one of the two shoes. My finger is pressed up against the inside so you can see the size of the hole. Both shoes are identical as far as far as the hole goes. No pair of Nike's should start to fall apart after only 2 months. Maybe that's why they aren't priced like the typical $150 Nike's. Who knows. I contacted the seller (Heart & Sole), but they wouldn't help in the matter, nor would Amazon. I guess worn merchandise is worn merchandise and I'm simply out of luck. Like I said, I really wanted to like these shoes. I could wear them all day long, but now I have to consider buying something else. They've progressively gotten worse. Not before long, they won't be wearable. Luckily I wear black socks...