Wifee has been rocking these for many years and loves them. She wears the paper thin minimalist ones for everyday wear and for running on the road and the heavier duty ones for heavier for everyday and heavier duty running, like on the trails. She swears by them. I have tried a bunch of different brands from Keen, Ecco, Bedrock to Chaco. Keens are close to shoes, really comfortable. But the soles are slippery, both on urban surfaces and the trail I have fallen on the trail with these. Ecco's are super comfortable, but to me, urban wear. Bedrocks are getting to the minimalist mode. The soles are hard and the edges scrape. I think my toes may be too long for their template as my toes pads rub the edges and after a while, it hurts. Same for my wife. And the heel strap always comes off, making the sandal want to come off. The Chacos also did not fit me well and the soles were thick. Mono 2.0 Luna Mono 2 They are the most comfortable of the minimal sandals to me. And the heel strap has never come off while I was wearing them. The footbed is comfortable as are the straps. I haven't noticed slipping yet. So far, I have put in about 25 miles or so on them, but not on the trail yet. Also did a few hours of tai chi in them. For a minimalist type sandal, I like these the best so far. The only minor dislike is that when your feet and/or the footbed gets wet, it will squeak a little. But it is open are so dries out quickly, which is a great reason to wear them, or at least pack them on the trail and/or camping. Airing out the feet is a big thing. And I would not be adverse to just walking through a stream with these rather than rock hopping. I follow up after I get them on the trail.