The Knox Phelix Womens Leather Biker Jacket is packed with features... Specifications include: 1mm aniline cow hide with leather interior panels Contrast stretch panels for the perfect fit and maximum movement YKK Metaluxe zip used on all openings High end branding & detailing Cotton interior lining on the body for comfort and freshness Taffeta used on the sleeves for comfort and ease of wear 1 zipped interior pocket Fully double stitched construction Unique dual fitting system which allows you to expand or contract the jacket to suit the layers you are wearing underneath. Part of the Knox Layering System Adjustable cuff closure system to enable easy fitting of gloves