"Willow" Nylon Lycra Blend is a versatile super smooth breathable fabric that hugs the body for a custom fit enabling you to dress it up or dress it down! "Willow" is designed to give maximum stretch conforming to your body for maximum support and comfort. "Willow" is perfect for wearing after a racing event or anytime under a sportbike jacket. Zipper on Front. Small Reflective Biomark on Back.