Men's Siege Technical Fleeces

Our lightweight men's mid-layers and men's fleece jackets are ideal for hiking, mountaineering, skiing and trail running in colder climates and winter conditions. The Siege men's tech fleece and men's insulated clothing deliver optimal performance across demanding outdoor activities.

Constructed from innovative Polartec® Power Grid™ fabric, the Siege men's tech fleece and men's insulated clothing will keep you insulated without overheating during outdoor activities. This advanced material provides superior thermal regulation compared to conventional men's fleece jackets.

The Siege men's tech fleece uses innovative Polartec® Power Grid™ fabric that maintains insulation while preventing overheating during active pursuits. These lightweight men's mid-layers deliver optimal warmth management for hiking, mountaineering, and trail running in colder climates.