All our fabrics are off-white, white, or in some cases black. If the fabric is treated in any way, for crease resistance, permanent press, water proofing or just to look good in the store or to function better in it's intended use, this will reduce the effectiveness of the dye (any dye) or resist the dye entirely. The finish that was applied will keep the dye from adhering. All of the fabrics that we offer are intended to be without such treatments and are ready to dye as it is. Pre-washing is always recommended when solid color dyeing is done (just in case there is some residual machine oil on the fabric). Our fabrics are natural. These are washed, bleached, and optically whitened or not optically whitened. They all dye well. Non-optic whitened fabric dyes better. We are only able to sell fabric by the full yard (no fractions of yards). The bolt sizes may vary, either smaller or bigger.