This edited book provides an in-depth overview of high-performance textile reinforcements and composites, emphasizing both experimental characterization and numerical modeling methodologies tailored for defense, aerospace, and automotive applications. This comprehensive resource covers experimental and modeling strategies to understand how textile reinforcements and composites perform under diverse loading and boundary conditions, crucial for demanding high-performance environments. It includes detailed chapters on composite fabrication methodologies, experimental responses of textile composites under varying loads, and the unique characteristics of these materials. A dedicated chapter discusses the latest advances in numerical modeling techniques for complex textile reinforcements and composites, addressing challenges in simulation. The book covers a broad spectrum of topics, including the fabrication of textile composites, the impact of various parameters on mechanical properties, interlaminar fracture behavior, and interlaminar shear strength. It also discusses key trends and the potential of cutting-edge materials and techniques in high-performance applications, specifically in defense, automotive, and aerospace industries. The book highlights recent advancements in textile composites, focusing on modeling and experimentation that drive the development of high-performance materials across various sectors. It is poised to be an essential resource for researchers and engineers exploring the field of textile composites for advanced applications.