Features of the Pearl Izumi Men's Summit Shell Jacket Barrier lite fabric is lightweight and windproof Eco-friendly C6 water resistant DWR treatment sheds precipitation Hood designed to Fit under-helmet without interfering with Fit Two-way YKK Vislon front zipper for easy venting Interior envelope pocket doubles as stuff pocket to pack jacket Packs down small enough to Fit in a jersey pocket or disappear into a pack BioViz reflective elements for low-light visibility Fabric Details 100% Polyester