John Doe Aero Mesh Windblock Jacket Designed specifically to pair with the John Doe Aero Mesh Jacket, the Aero Mesh Windblock Jacket is an extremely lightweight inner liner that extends your riding season without adding bulk. It slips easily inside your Aero Mesh Jacket to provide effective wind and weather protection — keeping you comfortable on early morning rides, through sudden temperature drops, or on longer tours with changing conditions. Breathable, packable, and unobtrusive, it adds a meaningful layer of wind protection without restricting movement or comfort. Wind Protection & Construction Windblock technology — effective protection against cool wind without restricting movement Extremely thin and lightweight construction Elastic inserts for maximum freedom of movement Breathable — won’t trap heat or moisture Compatibility & Integration Designed for use with the John Doe Aero Mesh Jacket Quick and easy to insert and remove High-quality YKK front zipper for easy handling Sizes: XS – 5XL (size to match your Aero Mesh Jacket)