Mid-Layer liners use a design technique called body mapping to enhance comfort and fit. Body mapping utilizes appropriate fabrics and shaping to reduce bunching and bulk at various stress points. That means that every Mid-Layer pice can comfortably be worn under any Harley-Davidson® jacket or alone as a separte outerwear piece. This mid layer is exclusive to the Mid-Layers Collection. Windproof 100% polyester fleece. Stand up collar. Zipper front. Bungee cord and toggle at waist. Embroidered graphics on left chest.