The Burgeon Mittersill Expedition Base Layer is built for the kind of cold that settles in and stays. When lighter layers stop cutting it, this is the one you reach for.

Handstitched with mid-to-heavyweight Power Wool®, it puts soft merino warmth directly against your skin and a durable nylon face on the outside to move moisture fast and hold its shape. Four-way stretch moves with you from the first chair to the last run, while extended sleeves and body length keep everything covered when you’re reaching, turning, or layering up. A quarter zip lets you dump heat when you head inside, or the sun finally breaks through.

• Cold-ready warmth: Built for deep winter days
• Next-to-skin comfort: Warm, breathable merino where it matters
• Built to last: Abrasion-resistant exterior for long-term use
• Coverage that stays put: Extended fit designed for movement
• Proudly made in New Hampshire, tested in the White Mountains