The adidas Women's Techfit Base Long Sleeve Top is a top-rated base layer top for women's tennis on Amazon. It features adidas' Techfit technology, which provides a compression fit for muscle support and improved performance. The long sleeves offer extra coverage and the lightweight fabric allows for breathability and freedom of movement. The top is designed to reduce muscle vibration and enhance your power on the court. With its top ratings and positive reviews, this base layer top is a popular choice among women tennis players who value both style and functionality.