Best-selling and buttery-soft, the Baritone Collection is ultra comfortable when you're lounging, and beefed up with ActiveTemp™ when you're moving. Its soft, brushed interior makes it perfect for cold weather activities that demand warmth, stretch, movement, and moisture management. Each Melody piece uses ActiveTemp™, the thermo-regulating technology that adjusts to your body temperature to keep you cool, dry, and comfortable during high-exertion activities.