It’s core-warming, weather-blocking coverage that won’t weigh you down! The Black Hills Windfront Vest fuses a waterproof/breathable membrane between a smooth, wind-blocking outer shell and a plush microfleece lining – protects like 3 layers, but feels as agile as one. Better yet, the tough nylon fabric has 15% spandex built in for 4-way flex that frees you to limb a tree, torque on a wrench or wrangle a rafter.