The Men's Burton Midweight Base Layer Long Neck Shirt hits the sweet spot for versatile mountain performance. Midweight construction delivers enough warmth for cold days while remaining breathable enough for high-output activities — the base layer you reach for most. Climate control technology manages heat and moisture, and the slim fit layers cleanly under any outerwear.

• Slim fit sits close to the body, with room for the garment to move with you
• Built-in Climate Control. The Midweight 200 reacts to your body temperature, accelerating moisture wicking when you're hot and retaining warmth when you're cold for balanced comfort all day long.
• Four-way stretch fabrication for enhanced mobility
• Stink Less. The sustainable Odor control of HeiQ Fresh keeps it fresh without limiting breathability.
• Chafe-free softlock seams for added comfort
• bluesign® approved materials use only safe chemicals and reduce impact on both humans and the planet during manufacturing
• Lifetime Warranty