Helly Hansen LIFA Merino Midweight 1/2 Zip Base Layer Top - Navy, Men's M

Men's midweight base layer top engineered for cold-weather performance, combining LIFA® polypropylene and merino wool in a 2-in-1 construction that excels at moisture management and insulation. The LIFA® interior rapidly wicks sweat away from the skin, while the merino wool exterior provides natural warmth and odor resistance, keeping you dry and comfortable during high-output activities in freezing conditions.

Advantages

The HH® LIFA® MERINO fabric technology delivers superior moisture control and thermal regulation. The flatlock seams minimize chafing, and the non-itch merino wool ensures all-day comfort against the skin. The stand-up collar and 1/2 zip design offer adjustable ventilation and extra protection for the neck. Certified Responsible Wool Standard (RWS) wool guarantees ethical sourcing.

Suitable for

• Cold weather outdoor activities such as skiing, hiking, and mountaineering
• High-intensity winter sports where moisture management is critical
• Layering under midlayers and shells in autumn and winter conditions
• Users seeking a warm, breathable base layer with natural odor resistance

Key specifications

• Material: 50% Merino Wool, 50% LIFA® Polypropylene
• Fabric weight: Midweight (ideal for cold conditions)
• Sleeve type: Long sleeve
• Collar: Stand-up collar with 1/2 zip closure
• Fit: Regular
• Gender: Men's
• Size: M
• Color: Navy
• Breathable and fast drying
• Thermal insulation with temperature control
• Flatlock seams for comfort
• Non-itch comfort
• Responsible Wool Standard (RWS) certified

Recommendations

Pair this base layer with a Helly Hansen midlayer and waterproof shell for a complete cold-weather system. Follow care instructions to maintain the wool's performance and longevity. Ideal for temperatures from -10°C to 5°C during active use.