Named after the scientific process of generating heat, this super lightweight insulated sweatshirt keeps you incredibly warm without weighing you down. Unlike cotton sweatshirts, our Thermogen sweatshirts keep you warm even when they get wet. The unique thermal regulating design warms your core while letting your sides and pits breathe, helping you stay comfortable and level-headed on the job.

• 9 oz. Fleece with 60g Primaloft® Gold Active Plus Insulation
• 100% Mechanical Stretch Polyester
• Fabric Protector Repels Liquids
• 50+ UPF Rating
• Interior Zip Pocket, Vertical, Recessed Handwarmer Pockets
• Full Front Beefy YKK® Zipper