Features of the Pearl Izumi Men's Summit Pro Barrier Jacket Lightweight, High-stretch knit face fabric for a close-to-body Fit PI dry Technology for permanent water-shedding Performance Interior membrane for wind protection with breathability Two-way zipper allows ventilation from top or bottom Silicone rear gripper to hold jacket in-place while in riding position Bioviz reflective elements for low-light visibility Fabric Details 100% Polyester