2XU is another company well-renowned in the athletic community, specifically for their leggings. The MCS Compression Tights have Muscle-Containment-Stamping (MCS) that applies targeted compression to places prone to fatigue like the quads and calves. They're also made from Power-Weight-Flex (PWF) material, which is a signature fabric that has a rare combination of weightlessness, impactful compression, and maximum flexibility. They're moisture-wicking, antibacterial like most good running gear, and have UPF 50+ Sun Protection. They also claim to be the only graduated compression technology proved to improve performance and speed up recovery.
In person, 2XU leggings feel effective— minimizing recovery time and feeling like a second-skin during long, hot runs. It's worth noting that there have been concerns in the past of 2XU leggings being see-through when stretched (though I personally did not experience any in testing), and the company responded with more paneling in their designs.
Source : https://www.businessinsider.com/best-gifts-for-runners-12-18158