Running on hard pavement and loose, variable terrain can take a serious toll on your body. While the impact is rough on joints, it can cause some serious pain on your muscles that takes a while to recover from. Engineers at 2xU aim to help mitigate that problem with the Core Compression Tights, which provide powerful muscle support and protection to the entire leg. This increased support helps up the blood flow to stress-prone areas, reducing muscle fatigue and soreness, as well as reducing muscle damage. They are build with lightweight and tough PWX fabrics that feature durable yarn that hold up to the rigors of trail and road running, while still packing in multi-directional stretch for a comfortable, albeit snug, fit. PWX fabrics are designed to actively wick away sweat to keep you dry, while protecting you from harsh rays with UPF 50+ protection.