The Tuc Cool is made with soft minky on one side and a soft cotton twill on the other side. The Tuc Cool was created for everybody to snuggle up with. This blanket gives a double dose of comfort depending on how hot or cold you are. Want a little warmth? Go with the minky. Too hot? Go with the cotton twill. But don't worry, the Tuc Cool still has our patent pending core sheet technology to help you stay comfortable without overheating.