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Although these risk factors have been explored individually, little is known about how they combine to alter the tumor immune microenvironment (TIME) and promote disease progression. To address this gap, we developed a murine model of both risk factors. Spatial analysis of the TIME revealed macrophages and T-cells predominantly localized in the stroma of both risk factor groups, indicating an immune exclusion phenotype. Mice with dual risk factors had significantly increased lung metastasis. To establish the human relevance of this model, we interrogated the TIME in biopsies from 158 patients with invasive ductal carcinoma and 10 years of follow-up data. We found that patients with both risk factors had the highest incidence of metastasis (45%). Furthermore, spatial immune profiling revealed exacerbated stromal localization of macrophages and T-cells in the dual risk factor group that progressed to metastasis. Overall, we uncovered an immune exclusion phenotype in metastatic breast cancer patients with obesity and breast density, and we present a relevant murine model that parallels human disease. 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