Turkey’s first condom, Okey, became the market leader right after its launch in 1991 and it has sustained this market leadership to the present day. Over a period of more than 25 years the brand has responded to numerous challenges by making adaptations to its target group, market positioning, product range, distribution channels, and communication strategy. The Okey case clearly shows that market leaders are not born but created, and that brands must evolve over time to retain their competitiveness. This case invites students to consider the steps that Okey has taken to maintain its long-term success, and to explore the critical factors for sustaining market leadership over a long period of time. For sustained market leadership Okey treated its brand like a “new brand” over these 25 years, always questioning market conditions and never becoming complacent. Mainly because markets, consumers, consumer habits, and trends evolve continuously, and for sustained market leadership the leader brands should also be able to move with the times, making necessary adaptations to pass the test of time.