The 2XU Refresh compression calf sleeves are fantastic. They really work well. I put them on after every ride and they make my calfs feel better. I believe they help to prepare my calves for the next ride as well. I haven't had any calf cramps since wearing the 2XU products. I also wear them on days were I will be sitting for 4 or more hours. Quality has been good so far, after 4 weeks of use.