I have KSOs. I wear socks with them because otherwise I get blisters and they get too sweaty. They get too sweaty even with socks so if I work out in them I have to take them off to dry out my feet. I can't just keep on wearing them. When it's cold outside they are very cold to wear, painfully so sometimes. I can't walk across wet grass without my feet getting completely soaked through instantly so they're not good for wet conditions. I hurt my calves every time I go running in them. I can't seem to get the hang of it. When I walk in them my morton's neuroma can be felt on the bottom of my foot in a strange and uncomfortable manner. Sounds like I hate them, huh, but I don't. I feel like I'm having fun when I wear them so I'm even thinking of getting another pair. The best thing is that when I wear them in my core-fitness class I think they really help a lot for the balance exercises. Makes the exercises more challenging and thus improves my balance better.
Female, 5'3", 50, Max squat: 202.5lbs. Max deadlift: 225 x 3.