The Men's Burton Heavyweight X Base Layer Pants is built for the coldest days on the mountain when warmth is the priority. Heavyweight construction delivers maximum thermal performance while climate control technology manages moisture to prevent overheating during high-output moments. Pairs perfectly with a shell for full-day cold-weather coverage.

• Slim fit sits close to the body, with room for the garment to move with you
• Heavyweight 300 Living Lining® provides consistent temperature regulation without adding bulk or weight
• Four-way stretch fabrication for enhanced mobility
• Quick-drying and highly breathable
• Chafe-free softlock seams for added comfort
• Hidden fly snaps
• External phone stash pocket
• bluesign® approved materials use only safe chemicals and reduce impact on both humans and the planet during manufacturing
• Lifetime Warranty