The Nike Therma-FIT Repel Synthetic Fill Running Jacket in black and grey integrates cutting-edge thermal management to sustain warmth during cold-weather running. Nike's Therma-FIT innovation captures and retains your body's natural heat, creating an efficient thermal barrier against harsh conditions. The durable woven exterior features water-repellent treatment, shielding you from light precipitation and snow whilst maintaining comfort. Lightweight synthetic insulation with integrated perforations balances superior heat retention with enhanced breathability, preventing overheating during demanding workouts. Engineered for runners who demand reliable performance across seasons, this jacket delivers the technical protection and mobility needed for consistent training in challenging weather.