I used to purchase socks in bulk. It was so easy to get a pack from Walgreens or some other drugstore for under $10. But, I noticed that they wore out quickly and the elastic wasn't that great. So now, I buy one singular pair that's good in quality and lasts for a long time. My favorite pair of socks are tennis socks. They are thick, comfortable and durable. Also, they don't slide down from my ankles. The kind I like . . .