Layer for Maximum protection
Cold weather is probably the most common reason why cyclists opt to include a base layer. It provides an extra layer of insulation and pulls sweat from your skin, which will keep you dryer and warmer. That extra layer will also help hold warmth near the body.
Pactimo, based in the home of schizophrenic weather (Colorado), designed the Thermoregulator to be the perfect foundation of any cold-weather wardrobe. It absorbs less moisture, breathes better and transfers more moisture than other fabrics. What's truly amazing is that in cold weather it works like a thermostat, transferring heat and moisture but retaining heat while still transferring moisture when you need warmth. It's comfortable and cozy without being bulky."