Helly Hansen say: An exceptionally lightweight, 2-in-1 base layer with a warm-breathable merino wool exterior and a LIFA® wicking interior. Our LIFA® Merino Lightweight collection is versatile and ideal for all cold weather activities.

We used our proven 2-in-1 layer system, combining LIFA® Stay Warm moisture management and the natural warmth of merino in an extremely lightweight crew. LIFA® Merino LIGHTWEIGHT delivers all the great benefits of merino wool fibers plus the unique wicking properties of technical LIFA® fibers.

• Insulation: 3/6
• Partly insulated
• Breathability: 6/6
• Extremely breathable
• Weight: 6/6
• Extremely lightweight
• Durability: 6/6
• Heavy-duty durable