Nike Trail PrimaLoft® Men's Therma-FIT Running Vest (Black/Summit White, FZ0001-010) Size Small

This PrimaLoft vest was designed with insights from runners to deliver the right balance of warmth and mobility. Its classic fit easily layers over a running top or under a shell jacket. Plus, it packs down into its own pocket when you start getting warm.

• Whether you're out for a quick forest jog or a longer mountain run, Nike Trail has the durability and adaptability to help make connecting with your surroundings easier, even in dynamic conditions.
• Nike Therma-FIT technology helps manage your body’s natural heat to help keep you warm in cold-weather conditions
• A down alternative that doesn't sacrifice warmth, PrimaLoft Thermoplume insulation resists water and provides excellent heat retention
• The durable woven shell has a water-repellent finish.