Nike Dri-FIT technology moves sweat away from your skin for quicker evaporation, helping you stay dry and comfortable. Stretchy, tight-fitting fabric offers a supportive feel while still letting you move naturally. A SWEAT-WICKING LAYER FOR YOUR TRAINING. The Nike Pro Top is a sweat-wicking, breathable base layer made with at least 75% recycled polyester fibers and is designed to support your training. The tight fit makes this top perfect for layering to achieve just the right feel as conditions change.