Sneaker reselling is the practice of buying limited-edition or highly sought-after sneakers and selling them at a higher price once demand increases. It has grown into a major market driven by hype, scarcity, and brand collaborations, with popular models often selling out instantly online. Many resellers use release calendars, bots, and social media trends to stay ahead, while beginners typically start by learning how to identify profitable drops and build trust within the community.