The SKINS COMPRESSION Women's Long Tights Series 3 are a fitted tight with a medium level of compression that provide targeted muscle support and comfort. A medium level of targeted compression is supplied to the calf, quad, glute and hamstring muscles during your run. A reduction in muscle vibration during activity increases comfort and helps improve performance. The moisture wicking fabric will help keep you dry and comfortable, and also protect you from the sun's harmful rays with UPF 50+ built in.