Affective Commitment (AC) is a key determinant of positive organizational outcomes. However, certain climatic factors like lack of leader openness to voice (LLV), lack of open communication opportunity (LOC), defensive norms of organizational culture (DNO) and defensive silence (DS) may lead to low level (AC). A mixed method, sequential explanatory design based on quantitative phase followed by qualitative phase is used. The quantitative phase used the probability sampling, questionnaire, structural equation modelling, whereas the qualitative phase used a semi-structured interview, thematic coding and causal networking for sampling, data collection and interpretation respectively. All hypotheses were supported by evidence and explanation was provided for why such relationships exist in the banking context of Pakistan. The implications, future guidelines and study limitations are also discussed.