This paper provides an overview of item-level radio frequency identification (RFID) tagging in the apparel supply chain. It explains the evolution of RFID technology and details key benefits when utilized by retailers, distribution and logistics providers, and manufacturers. When used throughout the apparel supply chain, item-level RFID provides an intelligence-rich environment that enables businesses to better transport goods, predict demand, efficiently promote stock, avoid write-downs and markdowns, and ultimately drive revenue and profit margins.