Poshmark is a social resale marketplace with over 100 million community members across the US, Canada, Australia, and India. Among them, Gen-Z - who have shown affinity for shopping vintage - maintain some of the top-selling closets. Repurposing secondhand clothing is both a sustainable choice and approved by so many celebrity stylists who are moving fashion forward. While you may not always find red carpet-worthy archival designer pieces on Poshmark, there are over 200 million items for sale spanning price points, categories, and brands (many of which are luxury), from Gucci handbags worth the investment to wedding dresses . If you're interested in getting into the business and selling items from your own wardrobe, but find the Poshmark app interface to be confusing or are unsure where to start, we're here to help. POPSUGAR spoke to three leading sellers. Olivia Hillier , Lindsay Kopp , and Kaitlin Kao have all made $50,000 or more in total earnings by utilizing the tool...