Columbia's Men's Extreme Fleece refers to a line of performance-focused base layers, often featuring Omni-Heat™ reflective lining and Omni-Wick™ moisture management for intense cold-weather activity, designed to trap body heat while wicking sweat, though general Columbia men's fleece offers various styles like the popular Steens Mountain series for everyday warmth and layering. While the "Extreme" line focuses on technical base layers for aerobic pursuits, you'll find many popular options like full-zips, hoodies, and pullovers from Columbia that are great for layering in various conditions. This men's top is NWT and has never been worn. Smoke and pet free environment.