Helly Hansen 75506 Lifa Base Layer Merino Pant

Meet a high-performance base layer pant designed for cold-weather, high-activity days. The Helly Hansen 75506 pairs Lifa® technology with Merino wool to deliver warmth, swift moisture transport, and all-day comfort for outdoor enthusiasts and winter athletes.

• Fabric blend: 57% Merino wool and 43% Polypropylene, 215 g fabric weight for warmth without bulk.
• Lifa® Stay Warm Technology: A dedicated layer that moves sweat away from the skin while keeping your core temperature steady during intense activity.
• Merino warmth and regulation: Merino wool naturally traps heat when you’re resting and aids temperature regulation during bursts of effort.
• Elastic waistband: Provides a secure, flexible fit that moves with you through climbs, sprints, and long hikes.
• Gusseted crotch: Adds mobility and reduces tension during dynamic movements and deep knee bends.
• Flatlock seams: Minimizes chafing and skin irritation for comfortable wear under layering systems.
• Care instructions: Machine wash in lukewarm water (40°C) on a very gentle cycle; do not bleach, do not tumble dry, dry flat, do not iron, and do not dry clean.

The Merino-Lifa combination addresses two common cold-weather challenges: staying warm during sustained activity and keeping skin dry as you push your pace. This base layer pant is ideal for hikers, skiers, runners, and outdoor workers who demand reliable warmth, efficient moisture management, and a comfortable fit under outer layers. The thoughtful construction—gstructured with a gusset and flatlock seams—ensures freedom of movement and reduced chafing, so you can focus on the task ahead rather than your gear. For best results, wear as part of a layered system and follow the care instructions to preserve warmth, fit, and performance over time.