Smart glasses are wearable computers that have heads-up displays and allow users to see digital images overlaid on the real world. The document discusses potential use cases for smart glasses in industries like oil and gas, manufacturing, retail, logistics, and healthcare. It provides examples of how smart glasses could help with tasks like line clearance, remote support, warehouse picking, and training. The document also reviews the potential benefits of using smart glasses for warehouse picking, including a 25% increase in productivity and a payback period of less than two years. Finally, it proposes some specific use cases that could be tested in a proof of concept, such as using smart glasses for hands-free line clearance checks or remote support.