The North Face Kid's Glacier Quarter Zip packs in lots of warmth into an easy to wear pullover top – The Polartec Classic Micro polyester fleece offers a balance between low weight & insulation. Polartec is a warm, highly breathable material that dries quickly. It is highly durable & machine washable, making the Glacier Quarter Zip an ideal lightweight fleece pullover for those messy kids who venture outdoors, whatever the season.