Whether you're headed out for a late November hike or just starting your day with a run at dawn, the Brooks Women's Drift 12 Zip Jacket keeps you comfortable throughout your adventure, no matter how hard the wind blows. Made from a combination of polyester and poly spandex blended fabrics, this jacket utilizes DriLayer Turbine for full windproof protection to help you run your route in warm comfort. The chin guard and draft flap add extra protection and prevent your chin from being chafed raw from constant rubbing when it's especially cold. Thumbholes at the cuffs ensure a snug fit and further prevent chilly breezes from getting in. Reflectivity at the front and back give you an extra touch of visibility when you're getting your jog in after dark.