These socks are nice and thin and perfect to wear with tennis shoes.  They are no show and actually stay put while walking. I've bought several brands of no show socks that slip off my heal and are more bothersome than what they are worth.
I really like the fact that they are cotton.  I won't buy any socks that aren't a high percentage of cotton.  I have trouble with some toenail fungus because I walk at least 5 miles a day.  These are great socks for summer walking.