Special type of cloth for drapes? I want to make some curtains/drapes in my house and i hold...

I want to make some curtains/drapes in my house and i hold heard of this fabric that from the inside you can see outside but form the outside, populace cant see inside into your house.
does anyone know where i could get this type of cloth or anything similar to that.
thank you.
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Answers:    You can buy these types of drapes at Family Dollar for $10. a panel- 42"x84".
If you obligation a wider curtain then sew them together.

You can also buy fabric similar to you are describing at Joann Fabrics.