content: I specifically bough these for use with some Vibram Five Fingers shoes and now I wear them all the time. They are just the right thickness that they don't mess up the feel of the Vibram shoes, very snug fitting. They wick moisture superbly and seem to wear well, we'll see over time if the continue to hold up well. They are fairly expensive so it can be a tough purchase decision but, for me they were a good value.