Get maximum strength relief for muscle pain that hydrates your skin while you use it. This calf compression sleeve is infused with menthol for cooling relief. Shea butter, retinol and caffeine provide 24-hour hydration. Micro-massaging fabric. Active ingredients last for 10 washes. Nylon/spandex. USA. Measure around calf: Small/Medium (9"-13"), Large/XL (14"- 18").