Simulating and rendering realistic hair with tens of thousands of strands is something that until recently was prohibitively expensive for real-time use. In this demo we show to render realistic hair with high geometric complexity in real-time on the GPU. Amongst cover topics including efficient creation and rendering of high amounts of geometry for hair (essential for creating realistic hair especially when in motion), shading, self-shadowing, level of detail, and important performance optimizations. We also talk about how to use next-generation hardware tessellation to make creating and rendering hair much more intuitive and efficient. This demo is DX11 and workiong on NVIDIA DX11 class graphics cards only.