Thermal comfort at its finest: The Activity Jacket provides cozy warmth in every season. From January to December: With our extremely versatile, ultra-warm jacket, you can make the most of your hikes. The Polartec Thermal Pro fleece offers the pleasant warmth of traditional fleece, while the soft material is extremely durable, ensuring the jacket looks good for a long time. The InterActive zipper allows for additional versatility, as you can wear the jacket with any waterproof product from the InterActive range for extra protection in bad weather. A practical piece to pack and take along!.