The North Face Met 5 Jacket uses innovative, Polartec Heat technology to provide added warmth when normal insulation just isn’t enough. It gives you that extra charge of heat when you need it! Jacket uses Polartec Power Shield fabric combined with Polartec Heat Technology to provide warmth on demand with 3 user adjustment heating levels that run on rechargeable lithium ion batteries. This jacket helps reduce the need to add or subtract layers during stop and go activities. Pick it up for $599.95.