Cancer warnings on "bags" refers to California's Proposition 65, flagging chemicals like phthalates (in flexible plastics, including some lunch bags, medical bags) and lead, which can leach from materials and pose risks, leading consumers to seek BPA/phthalate-free alternatives for food contact or for medical use like IV bags. Refer to the link for more information https://www.p65warnings.ca.gov/
Separately, "Bag It" is a cancer patient resource providing tools, information, and support for navigating diagnosis and treatment.