I wear them every time. When I met my wife’s cardiologist and he found out I was a pilot, he immediately insisted that I wear them. It took me a while to take his advice, but everytime I saw him he would remind me to wear them. He said it was very important, so I took his advice. They were annoying at first, but I got used to them. I could actually notice that my legs felt better at the end of a long day flying.