Crafted from smooth, water-resistant, and windproof fabric, this puffer vest by Nike features Therma-fit technology to keep you warm and dry. Its loose fit offers roomy comfort, making it perfect for layering without the bulk. Nike Therma fabric helps keep you warm. Down insulation adds warmth for a lightweight construction that packs in the heat. An elastic waistband and bungee cord at the hem helps you adjust the fit.