SIZE - The Girls NASA Shirt is available in youth sizes XS - XL.MATERIAL - The NASA Space Apparel is made of 100% cotton material for a soft, comfortable fit.OFFICIALLY LICENSED - The NASA Girls Graphic Tee is officially licensed and 100% authentic.SOFT HAND PRINT - The NASA Girls Youth Clothing features a bright, bold, soft hand print graphic.MACHINE WASHABLE - The NASA Orbit TShirt is machine washable for quick, easy care.