Tried:Â Lunas, Xeros, Tevas, Chacos, Bedrocks, EarthRunners (for a hot second), and Shammas.
Currently have: Bedrocks
The thicker bedrocks are hands down the best sandal I’ve worn in my long-haired, barefoot, hippie lifetime. (I think Cairn 3D is the model I wear now, but have worn the thinner soles too.) They aren’t great in water – debris gets trapped underfoot and your foot loses traction in the footbed unless you crank the straps down – but good enough that you can canoe/kayak in them. (You cannot kneel at all in them, lest the toe-thong saw its way into your instep, which is extremely anti-Canadian.) The straps are streamlined and no-brain-needed. They will loosen up when wet. I am very much anticipating Bedrock coming out with a leather, stroll-ready version (called Rokassins, of course) but my psychic powers have not as of yet succeeded in making them appear on the website. Disadvantage: you need special socks under them, if you wear them.
The Xero z-trails felt great when they were dry, and were very nice to hike in all day, but were absolute murder as soon as they got any sort of wet. (Mud, sweat, water, anything – and to be fair this is the Achilles heel of most light/barefoot sandals.) They’d slip halfway around your foot, and the straps would loosen while they did it. I wore them for five days portaging boats in the St. Regis one time and I will never wear them again on trail. I’ve still got my pair, though, and they’d be good beach shoes or camp shoes or whatnot. Advantage: You can wear normal socks under them, no toe strap.
Lunas (I think I had skinnybears) were good, they had great soles. The strappage wasn’t the best, in terms of layout and adjustment, and you’d have to have a lot of miles barefoot or in sandals under your belt to last all day on a trail in them. I really liked the shammas but the footprint was huge (very wide) and the way the straps were set up wasn’t very intuitive. A few hours in them and my feet would start to ache, but I don’t know if that’s because they’re simply very thin or there was something affecting my feet from the layout of the shoe. They were extremely comfy for those hours, though. Earth Runners seemed sort of gimmicky, I got a pair but sent them back, they have a little copper plate in the center of the sole but apart from that I didn’t see they were anything different from something I could make myself. (The super-ultra-mega minimalist options from various companies didn’t seem much better than you could make at home, too.) All of these have a toe-thong so you’d need special socks under them.
Tevas and Chacos, I haven’t had a pair in years, so they may have come out with thinner, lighter options recently, but they’re great sandals all around just very heavy for sandals. I’ve gone totally zero-drop over the past two years or so, and never done a better favor for my knees, so I will say my sandal experience is limited to zero-drop.
N.B. – I hike a lot in sandals but I don’t run much at all, in or out of sandals; Lunas seem to be more popular with runners rather than walkers.