Selecting the ideal jacket material depends heavily on the intended use case. For outdoor and performance gear, prioritize waterproof and breathable membranes like PTFE or TPU laminates with a high Water Column rating (e.g., 10,000mm+). For casual or fashion jackets, focus on hand-feel and drape, utilizing materials like brushed cotton, polyester blends, or synthetic leather. If the goal is thermal insulation, ensure the fabric is compatible with down-proofing treatments or has a tight weave to prevent fiber migration.