Design and Development of Quilted Leather Biker Jackets Incorporating Protective Features for Functional and Cultural Applications

This research presents a comprehensive design and development process for a quilted leather biker garment system tailored for heavy motorcycle riders in low-temperature northern regions. By integrating a three-layer quilted structure with vintage-washed maroon leather, ergonomic cut lines, stitched metal hardware (buckles, belts), and CE-rated knee and elbow protection modules, the garment aims to deliver thermal comfort, mobility, and impact defense without sacrificing style. Prototyping was executed under governmental collaboration, aligning with international safety standards such as EN 13595, and tested through thermal chamber trials, mobility assessments, impact testing, and real-world rider feedback. The results indicate remarkable improvements in thermal retention, flexibility, and force attenuation and establish this garment system as credible candidates for institutional production with publication in international technical-textiles and protective clothing forums.