I looked on Robert Kaufman's website and couldn't find this fabric - and I can't attest to the quality of his fabrics, either. I think it's generally good stuff because a lot of diaper makers use it.
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Re: Can you ID this fabric?
According to : https://cgi.ebay.com/PEACE-SIGNS-RED-WHITE-AND-BLUE-ON-WHITE-BY-THE-YARD_W0QQitemZ350464399126QQcategoryZ28162QQvarZQQcmdZViewItem#vi-content
It's a Robert Kauffman fabric.