The Ronhill Aspiration Windlite Jacket is designed to provide comfort and warmth for training on days with poor conditions. Breathability and protection in just the right ratio will have you training to your maximum potential. Activelite fabric is both breathable and wind resistant. The excellent wind resistance is achieved through a tightly woven construction which prevents wind from penetrating the fabric whilst maintaining a high standard of breathability. Added to that this fabric is lightweight and boasts water resistant finish ensuring you can perform unhindered on any run.