Very comfortable & supportive. This is more like wearing a sneaker than a typical hiking boot...but a SUPER SNEAKER, if you will. I am amazed that a boot with such a flexible stretchy upper can be so supportive in the footbed. My only problem is with the lacing. Because the upper is so flexible, I sometimes make the mistake of tying the laces too tight at first, and then have to readjust them several times to get that sweet spot where they're not too tight & not too loose....just tight enough. But, with a little practice, it hasn't been much of an issue.  The placement of the speed-lacing tabs make it possible to customize the lacing configuration. So, play around with it a bit. ALSO, I took the advice of other reviewers and ordered these 1/2 size larger than my usual size. GOOD THING!! Thanks to the reviewers who mentioned this...you saved me from having to do a return & reorder! This 1/2 sz larger is a PERFECT FIT. And it accepts my orthotics without diminishing the fit in the heel. I have really enjoyed my walks with the dog while wearing these. I take several long walks every day, over grassy, rocky, bumpy ground, and my foot feels secure, no matter what. No slipping around inside the shoe. The flexibility afforded by the slight stretchiness allows more natural movement and less stress on knees & hips. And yet, my ankles always feel just the right amount of support. I've gotten these boots wet in just-rained-on grass & puddles, and rinsed off debris by stepping into 3&#34;- 4&#34; of water, and my feet have remained dry. Towel the boots off and there's no need to remove them to step inside the house. For me, they're a &#34;keeper&#34; !!