Arctic IV ML Jacket delivers warm, fast-drying Polartec fleece performance for winter adventures
What Our Gearhead Experts Are Saying:'This fleece is my go-to midlayer when the temperature drops. The Polartec Thermal Pro fabric is incredibly warm for how lightweight it is, and I love how fast it dries after a long day on the mountain. The flat seams keep things comfortable under a pack, and the zippered pockets are perfect for stashing essentials. Whether layering up for the slopes or wearing it on its own, this jacket is a winter essential.'
From crisp morning hikes to apres-ski lounging, the Mammut Arctic IV ML Jacket delivers the warmth and comfort we need for cold-weather adventures. Made with high-performance Polartec Thermal Pro fleece, this midlayer offers an excellent warmth-to-weight ratio while remaining breathable and fast-drying. Whether we’re layering it under a shell or wearing it solo, the soft, lofted structure traps heat while resisting pilling for long-term durability.
Designed for performance, this fleece features flatlock seams to prevent chafing under a pack, zippered pockets for secure storage, and elastic cuffs and hem for a snug fit. Whether we’re hitting the slopes, hiking in brisk conditions, or enjoying a relaxed day outdoors, the Arctic IV ML Jacket is a dependable go-to for all things winter.
Details
- Warm and breathable Polartec Thermal Pro fleece for cold-weather adventures
- Lightweight construction offers an excellent warmth-to-weight ratio
- Flatlock seams prevent chafing when worn under a backpack
- Two zippered hand pockets and one zippered chest pocket for secure storage
- Elastic cuffs and hem provide a snug, s