The Nike Pro Vent Tight Bolt top is a performance base-layer top that's lightweight and cool to the touch. Tubular seamless body construction. Knit-in mesh panels under arms and at back neck. Flat stitching at seams. Heat transfer tattoo "Lightning Bolt" on center chest. Swoosh design trademark heat transfer at left chest. Dri-FITŪ 74% polyester/14% nylon/12% spandex jersey. Imported.