What is the X-15? First one-design wingfoil world championship brings global riders together

Wingfoiling is one of sailing’s fastest-growing disciplines. Powered by a handheld wing and lifted above the water by a hydrofoil, riders combine balance, athleticism and an understanding of the wind to experience flight. That appeal has attracted Olympic sailors, experienced windsurfers and a new generation discovering wingfoiling. This week in Ibiza, those different journeys have…