# SCIENCE . These shirts are only available for LIMITED TIME!Guaranteed safe and secure checkout via:Paypal | VISA | MASTERCARD | AMEX | DISCOVERTIP: SHARE it with your friends, buy 2 shirts or more and you will save on shipping.* HOW TO ORDER?1. Select style and color2. Click "Green Button"3. Select the size and quantity4. Enter shipping and billing information5. Done! Simple as that!