WARMTH WHERE YOU WANT IT. The Nike Dri-FIT Academy Top is made with sweat-wicking technology to help keep you dry and comfortable. Invisible Thumb Loops keep your sleeves secured. Dri-FIT technology helps you stay dry, comfortable and focused. Soft fabric feels warm and comfortable. Stretchy sleeves let you move freely. Invisible Thumb Loops stay hidden when not in use. 1/4-length zipper lets you adjust your ventilation.