We examined the current field identity of Islamic banks and its evolution. We conducted interviews with 44 Sharia (Islamic law) scholars and related professionals in the fields of Islamic and conventional banking, representing nine jurisdictions. We found that Islamic banks are still hybrid organizations belonging to two equally powerful fields of Islamic law (Sharia) and conventional banking. Consequently, Islamic banks abide by two completely different institutional logics. The hybrid identity of Islamic banks resultantly became static due to institutional pressures exerted (...) by both root fields. We discuss how hybrid fields evolve focusing on the conditions that prevent hybrid field identities from becoming independent. We also contribute to the literature on elastic hybrid identity of organizations by theorizing an elastic fatigue model. Finally, we suggest some practical motions to boost the static hybrid identity of Islamic banks and transform it to an elastic one. (shrink)