I love these boots. Although the description doesn't say so, they are the "Chore Cool Hi" variant of the boot that is also available in a shorter version. I use them when photographing in streams and wetlands and on beaches. They let me get to places that would otherwise be inaccessible without putting on waders or wading in bare feet. This model has grippy Vibram soles which make walking on slippy surfaces easier. The insole is soft and removable which is handy for customizing the fit or just drying the boots out if you happen to get them wet inside.As far as the fit, they are very roomy inside. I put a SuperFeet Trailblazer insole on top of the included insole and the fit with my low volume feet is acceptable if still a little sloppy. I've hiked several miles in them without any problem. I have larger (17.5") calves and the tops of the boots are tight but not so much that they are at all uncomfortable.This is the "cool" version of the boot and, when standing in water, my feet are very comfortable. In temps below 70F, my feet and legs never feel hot or sweaty, however when temps rise any higher and I am exerting myself I become aware of the fact that my legs are getting a little sweaty. Nothing unbearable—though I can imagine them becoming increasingly uncomfortable as temps rise above 80F.These replace a set of NEOS overshoes that come up higher than these boots and are cooler (sometimes a good thing; other times not). I miss the extra height of the NEOS but nothing else. I am much more agile in these boots and, unlike every pair of NEOS I've ever owned, they are perfectly watertight as long as water doesn't come in over the top of them.In conclusion, I absolutely recommend these boots. They've really exceeded my expectations. I wish they came up even a little higher and were available in black or a black camo instead of the ugly (IMO) brown but I knew what I was getting when I ordered so I won't deduct anything for these minor quibbles.