The 4000 Thermal Zip Neck is our middle-of-the-line tops offering and offers the best blend of warmth, breathability and moisture wicking for just about any activity.
When practicing winter sports, wearing a very thin first layer of clothing that allows moisture to be evacuated is ideal. The 2004 long-sleeve top is a perfect base layer to keep you dry all winter. Antibacterial and anti-odor properties make it an ideal
