This qualitative study explored the identity development process of 11 undocumented college students living in the United States, focusing on how undocumented college students negotiate the interplay of acculturation, ethnic identity, and educational and career pursuits. A semistructured interview protocol was used and data analysis was iterative, consistent with grounded theory methodology. Four major themes emerged from the data: (a) "sewn with two threads" describes the salience of bicultural identity; (b) enhancement of positive attributes as a result of documentation struggles; (c) challenging reflections, addressing the ways in which documentation status challenges one's perception of oneself and the world; and (d) identity formation as an ongoing negotiation, capturing the long-term shifts in understanding of status implications and emotional response to this understanding. Findings are discussed in terms of their implications for educators, counseling psychologists, and career counselors. Suggestions regarding how mental health professionals can educate and empower undocumented immigrant youth are presented. (Contains 2 tables.)