I haven't had these long enough to know for sure but they seem to be very durable and extremely supportive. They are a little heavy and run true to size. I got a 9 and I am a Brannock size 9D (9 in Sperry's, 8.5D in Redwing 8 Last, 9 in Redwing 210 last, 10 in Reebox/Adidas athletic shoes, 9 in Adidas slides) I would even say the straps are a little loose on my feet. I don't think I have high arches, just average. But I feel that sizing down would make the foot-bed a little too narrow/small for my feet. They are definitely some of the more stiffer soled flip-flops I've ever worn. Some say they need breaking in, I'm just hoping the straps don't stretch anymore after breaking in or they may not stay on my feet.If you're looking for something soft and cushy (I wasn't) from the get-go these are probably NOT what you want.I got these for A LOT of walking so I wanted support, hopefully the straps and weight aren't an issue.I will try to update the review after more wear. But it's too early to give them 5 stars, especially with the straps a little loose for my liking.I've been wearing these exclusively for 2 months now, and overall they're pretty good. I read a lot about breaking them in, etc--they have never been uncomfortable though, and I haven't noticed a huge difference since I first put them on. They're very good when wet, and fit my 10.5 foot well. They do look super durable; since they're made of recycled tires, guessing they should go 30k miles or so. I only paid thirty bucks for them, so it was a good deal. But I think I'm still going to switch. Why? Because I was in Olukai Ohanas before. The Ohanas, especially since they retail for the same money, are just WAAAYY more comfortable. Much cushier. Immediately noticeable when you compare them. The straps are more forgiving than the Chacos as well. They are just as versatile. They also look better IMHO. If I had never worn the Olukais, these would probably get 5*.I have struggled for the last few months with a mild case of plantar fasciitis. I've purchased walking shoes to accommodate, tried gel inserts in dress shoes and they worked (for the most part). I have a very coushy pair of sandals which took the pressure of my pf but my foot was uncomfortable because of the instability. So doing research, I came across Chaco sandals. I heard that they can be tight, which was true out of the box and even into 2 weeks of wear but they loosened up a bit. They're very stable. Feels like they're forcing my feet back to a natural (read: neutral) stance. The soles are in no way coushy. They feel like a car's tire, honestly. But I'm finding that I can walk and stand longer with little to no pf pain and no real pain in my knees/back, which was common even in the most comfy of shoes. If they were a comfy pleasure to wear, we'd have 5 stars, hands down. I'd give them a 4.5 if I could. So yes, expect it to be tight to start; to be putting your feet back to a more neutral stance; but also expect it to help take away some of the stress that flows up your legs and into your back because of said neutral stance. But don't expect coushy ...I have had a few pairs of these sandals now, and they each lasted about 2 years with daily wear. I live in a warm climate and wear these sandals all day, nearly every day. I have worm them camping, hiking, and while rock climbing (in between climb attempts) and they are very durable and comfortable. They are nice and firm, unlike some other sandals that feel "squishy" because they are so soft. They hold their form, which helps them stay securely on my feet. I can remember that my first pair took a few days to feel comfortable. I recall that the texture of the sole made my feet a little tender at first, but this feeling quickly went away. Also, I advise a pretty snug fit for the strap, as it will break in and loosen up slightly. As is true of all shoes, the do eventually fail (mine have all failed by having the webbing that runs between the toes pull out from the sole), but only after many many hours of hard wear, and I never hesitate to buy another pair when this happens. They are more expensive than many sandals, but they are a better value because they require less frequent replacements. I will not spend my money on a different sandal than these.The flip flops are very comfortable with good arch support. Break-in period was minimal. I typically wear a half size. I sized up and the fit was perfect. My only complaints are based on Chaco advertising which led me to believe that the flip flops are more sustainable and repairable than they are.Minus one star because the webbing is connected to the sole by glue which will inevitably fall apart. I know because this is not my first pair. Chaco confirmed to me that this is normal and not repairable. At least they are supposedly recyclable. I wish they were stitched instead of just glued.Minus one star because the "lifetime" warranty is 3 years. Had they not called it a lifetime warranty, I would have thought that a 3 year warranty for flip flops was great. But it does not sit well with me that they publicly guarantee the product for the "life of the product" without publishing that this means 3 years. Just call it a 3 year warranty.Love them. Can walk all day in them. Over rough ground. Then wear them out at night. Tough, supportive and comfortable. Like any flip flop not good for dancing, so kick them off and dance barefoot!nice sandalLike them, and they reached on time..Bueno mi opinión sobre este producto .es que después de recibirlo e intentar devolver .(talla pequeña) con la política que tenéis de poder imprimir las etiquetas correspondiente .llego a mi centro de trasporte para la devolución y me indica que esta etiqueta no está registrada en su base de datos .(destinatario Polonia ) el coste que debo pagar es de 27,39 € por la devolución de un producto vuestro .lo cual no hago .evidentemente .mandando un email .a vuestro departamento de devoluciones y sin tener constatación todavía .lo cual me lleva a tomar la decisión de no comprar más en esta página .graciasbest flip flops ever