The app focuses on fast fashion items that typically retail for under $60 and have little cash resale value. It is more efficient than pure resale marketplaces, with over 50% of listed items finding a new home. While higher-end items can be bought and sold with cash, 99dresses is the only app that enables the trading of cheaper fashion items. The company started as a trading-only platform in 2013 and has recently expanded into buying and selling due to popular demand. 99dresses participated in the YCombinator Program and allows users to trade fashion items with other users.