3N2 Umpire Half Zip Jacket - Men's When you're freezing, you're distracted from making the perfect call. Stay focused on the count in 3N2's Umpire Half-Zip Jacket. This zippered pullover uses a microfiber shell, lined with warm nylon. It's oversized to allow for easy layering and includes a stand-up collar, side pockets, and an elastic waist to help keep out the wind. 100% microfiber polyester. Imported.