I have only worn them once but they seem to give my ankle good support as they are low cut socks. I have arthritis in my ankle which causes it to swell frequently. I find that compression stockings help. I wasn't sure if these socks would have enough compression in the right places to keep my ankle from swelling, but it did. I washed my socks after putting them on and they seem to have done a great job. I didn't put them in the dryer, I put them on the dryer to dry. I will often wear these socks in warm weather.