Utilizing a breathable, stretch fabric that is both wind and waterproof, the NBx Wind Blocker Jacket protects the avid runner against extreme winter weather. The garment is composed of Thermal Wind Block fabrication, a premier wind and waterproof fabric. The jacket is treated with Polygiene® for anti-microbial protection and features Silver Lining at the back yoke and collar to create a waterproof and windproof barrier against the elements. The jacket offers front and back reflectivity and a music-friendly internal pocket with wire guide and exit valve. The mens top features retractable hi-viz gusset at forearms with thumbholes that allow the athlete to be more visible during a workout in low light conditions and utilizes X-Static® at the back collar for a powerful anti-microbial and odor eliminating system. The womens jacket is equipped with hi-viz double cuffs that can be flipped up for added visibility.