What Our Gearhead® Experts Are Saying:"This lightweight fleece is my favorite for shoulder-season layering. It’s warm enough for cool mornings but breathable and quick-drying for high-output activities. The quarter zip is perfect for controlling airflow when things heat up."The Outdoor Research Polartec® 100 Quarter Zip Pullover is a must-have for active adventures in cooler weather. Its lightweight Polartec® fleece provides just the right amount of warmth while wicking away moisture and drying quickly to keep us comfortable during dynamic pursuits. The 10-inch center zip offers ventilation when we pick up the pace, and stretch binding at the collar and cuffs ensures a secure fit. Made with bluesign® approved 100% recycled polyester and featuring a UPF 30 rating, this versatile pullover lets us move through the day with comfort, confidence, and a lighter environmental footprint.