A classic crew for cold days, the Nike Therma-Sphere Men's Long-Sleeve Running Top helps keep you warm and comfortable when you don't want to miss a run.  Stay Warm, Stay Dry Soft, fleece-like Nike Therma-Sphere fabric helps you stay warm by holding in your body's natural heat. The fabric has Dri-FIT Technology that wicks sweat away from your body to keep you dry and comfortable. Designed for Comfort Thumbholes keep the sleeves from flapping as you move, so you can stay focused on your run. Carry Your Essentials A zip-pocket at the front-left bottom lets you carry your keys, cards and cash with you as you run.