MTHD Altitude Merino Pants

MTHD Altitude Merino Pull-On Pant – L2 Cold Weather Insulation Layer

Next-Level Warmth Meets Merino Performance

The MTHD Altitude Merino Pull-On Pant (L2) is a mission-ready layer designed for movement in cold, wet, or shifting environments. Whether you’re rucking through snow, running winter drills, or just need a smarter base for the everyday grind, this pant blends the natural performance of Merino wool with technical fleece design to keep you warm, dry, and mobile.

Built from a Woolmark® certified Merino/poly grid knit fleece, the Altitude Pant adapts to your body and your environment—trapping heat when it’s cold, and releasing it when things warm up. The internal grid structure enhances breathability, reduces weight, and improves wicking, while the smooth-face exterior resists pilling and adds compression-friendly durability.

Wear it on its own for mild conditions or as your L2 insulation layer under a hard shell when conditions get extreme.

Why We Love It

Merino isn’t hype—it’s legit. These pants regulate body temp, wick sweat, kill odor, and stay warm even when soaked. Plus, the grid knit adds performance stretch and airflow without extra weight. The fit is clean and athletic, and concealed EDC-ready pockets make them more than just a layering piece. If you're layering for cold weather missions or just upgrading your off-grid kit, this is your go-to insulation layer.

MTHD = Mountain, Tundra, H2O, Desert.

Features:

• Woolmark® Certified Merino blend
• Sustainably Sourced Natural Fiber
• Anti-Microbial
• Athletic Fit
• Breathable
• Moisture Wicking
• Odor Control
• 4-Way Stretch
• Gusseted Crotch
• Articulated Knees
• Elasticized Waistband
• Front Drawcord Adjustment
• Grippy Interior Back Waistband
• Back Waist Hanger Loop
• Concealed Zipper Hand Pockets
• Hidden EDC Pocket
• YKK™ Zippers
• Reflective Trims
• 60% Merino Wool/ 40% Polyester Grid Knit Fleece

Size + Fit:

• Model is 5'11", 185lbs, and is wearing a size Large