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My wife has a long history of problems with blisters on her feet. Her feet are an unusual size and shape, and many shoes give her troubles. Even her hiking boots sometimes give her problems, especially if she hasn't worn them for a while. She used these socks on a couple of recent hiking trips, including day hikes of up to 13 or 14 miles, and she had no blisters or sore spots after any of the hikes. These socks did a good job of keeping her feet warm (another issue she struggles with), but she also didn't feel like her feet were sweaty, either. They washed well and didn't shrink in the dryer (which is unfortunate for her because they were slightly too big for my wife's small (women's size 4.5) feet), but should be good for most people.