FIRST LAYER.FAST LAYER.For matches when you need a little extra warmth, the Nike Dri-FIT Park First Layer kit provides coverage that wont cut down your speed.The stretchy fabric and Invisible Thumb Loops create a streamlined layer that moves smoothly below your kit.Invisible Thumb Loops stay hidden when not in use.Dri-FIT technology helps you stay dry, comfortable and focused.Raglan sleeves eliminate the shoulder seam to help you move freely.Tight fit gives a streamlined look and feel.Swoosh design trademark is heat transferred on the center of the chest.Stretchy fabric with a smooth face provides a low-friction underlayer.Composition:100% Polyester.