Features: - 100% brand new and high quality leg sleeve. - High quality light smooth and elastic spandexfabric. - Warming and protecting the joints is helpful for running, arthritis, impact sports like tennis or golf and for joint support when resting between activities. - Bamboo Charcoal in the sleeve is soft and natural against skin, allowing breathability, flexibility and boosts circulation. - It can be effective in preventing your knee and shank in the process of the sports , and it will protect your knee muscles and joints effectively. - Great for warming the joints before training in the cold winter months.