Haglofs says about the Betula Jacket Men
If you’re hitting the trails, don’t leave without a trusty mid-layer that will keep you warm. This all-around jacket is ideal for layering, and even works great on its own. It’s made from advanced Polartec® Power Dry® fabric, based on recycled polyester, for excellent freedom of movement, warmth-to-weight ratio, and moisture management. Equipped with two zippered pockets for your essentials.