Columbia Men’s Altimeter Shirt

The Columbia Men’s Altimeter Shirt literally pulls heat away from your skin when your workout heats up. What could be better? Instead of overheating in your regular shirt, this product features Omni-Freeze technology which provides the ultimate in comfort while running, biking, hiking, or doing any other athletic activity. The shirt is lightweight, comfortable, and even has built-in sun protection to block out powerful UV rays.