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Winds of massive stars are an important ingredient in determining theirevolution, final remnant mass, and feedback to the surrounding interstellarmedium. We compare empirical results for OB star winds at low metallicity withtheoretical predictions. Observations suggest very weak winds at SMCmetallicity, but there are exceptions. We identified promising candidates forrotationally enhanced mass-loss rates with two component wind and partiallystripped stars hiding among OB stars with slow but dense wind in the SMC. Apreliminary analysis of these systems, derived parameters, and theirimplications are discussed. Finally, we briefly discuss the interaction of OBwinds near black holes in X-ray binaries.

Winds of OB stars: impact of metallicity, rotation and binary interaction