The Calvert Flexible Bond Fund Class I (CUBIX) is a mutual fund that primarily invests in a diverse portfolio of fixed-income securities, including government and corporate bonds, mortgage-backed securities, and other debt instruments. This fund aims to provide investors with a flexible and actively managed approach to bond investing, seeking to generate income and preserve capital while also considering environmental, social, and governance (ESG) factors. With a focus on sustainability and responsible investing, the Calvert Flexible Bond Fund Class I offers investors a socially responsible option for their fixed-income investments.