Not sure about a fabric?....Get a swatch
You can get a swatch of a fabric or a swatch card.
A swatch card is all colors available of a specific line.
For example: You need a chino twill but want a swatch of all colors of chino twill you would want a swatch card.
If you just want to to the navy color of Chino Twill you would just want a swatch
Swatch cards are $9
Individual Swatches $2 each