Nike's core "Nike +" marketing strategy involves a partnership with Apple to create a system where Nike shoes are equipped with sensors that connect to an iPad to provide users with feedback on distance, pace, and calories burned during runs. Customers can also design their own shoes on Nike's website. While this strategy provides a unique customer experience, it also results in high advertisement costs that increase product prices. When choosing partners like Tiger Woods, Nike also exposes itself to reputational risks if those partners experience scandals.