The SubZ Vest 4 is a highly functional running vest designed for intense training in cold winter conditions.This advanced half-zip vest features a windproof front and upper back with lightweight insulation in a 3-layer bonded design, providing excellent warmth and comfort in cold weather. The garment also includes a windproof and water-repellent perforated polyester fabric on the sides and lower back for better ventilation. Additionally, several practical pockets enhance the versatility of this cold-weather vest, making it an excellent choice for winter training and everyday wear.• Windproof outer fabric and lightweight insulation in a 3-layer bonded construction at the front and upper back• Windproof and water-repellent perforated polyester on the sides and lower back• Jersey bomber collar• Half-zip design• Two hidden zip pockets on the side seams• Waterproof zip pocket at the lower back for secure storage• Reflective print at the front and back• Classic fit