Warming zones on the lower back protect you from the cold; flex zones on the shoulders and elbows allow you to move freely and unrestrictedly; the body-hugging fit ensures optimal comfort on wear For tennis, running or hiking, functional underwear is the first layer of your outfit, accompanies you during outdoor activities and offers the ideal mix of comfort and performance Special knitting techniques guarantee a excellent fit; the seamless finish provides maximum comfort and freedom of movement and prevents pressure points, allowing you to achieve the best performance The high-quality functional material is durable and resistant to wear and tear, making it ideal for use in functional clothing that is frequently washed and worn