Cheap and dirty?Have a supermarket plastic bag in a pack or jacket pocket, to deploy when you forget proper dress, or conditions change (good for other trail side emergencies too). Slide that down and in, voila, wind blockage.Have a buddy that just uses a sheet of small bubble, bubble wrap, any time he needs it.Me? Windfront tights have been my MO for years, I have no idea this discomfort you speak of!