Nike Therma-FIT ADV Repel Downfill Running Gilet Cold weather shouldn't stop your run. This is why Nike's designers created a lightweight running vest with advanced warmth. Down insulation fights off the chill, and water-repellent fabric prevents discomfort in poor weather. Utilising Therma-FIT ADV technology, the Therma-FIT ADV Repel Downfill Running Gilet combines heat-regulating fabric, alongside advanced engineering and features to help keep you warm during cold-weather running conditions. Moisture-wicking, the materials ensure that sweat and moisture don't build up when wearing the garment, therefore ensuring you remain dry and comfortable during your run. The gilet uses down and feather insulation, plus synthetic insulation on the sides to keep you warm and cosy on those cold running adventures. Ensuring you're ready to tackle the changing weather, the garment also has a lightweight woven outer fabric, which is water-repellent, allowing you to stay dry in wet w