LIFA® Merino Lightweight Crew 2-in-1 Base Layer An exceptionally lightweight, 2-in-1 base layer with a warm-breathable merino wool exterior and a LIFA® wicking interior. The LIFA® Merino Lightweight collection is versatile and ideal for all cold weather activities. HH used the  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 fibres plus the unique wicking properties of technical LIFA® fibres. Fibre Content: Shell: 70% Merino Wool, 30% Polypropylene Care Instructions: Do not use fabric softener, Do not wring, Use wool detergent, Wash inside out Weight: 280g FEATURESLIFA® Merino2-layer construction100% Merino wool exteriorFlat lock seams for ideal comfort and durabilityNon-itch fabricZQ wool 49370 Helly Hansen Men's Lifa Merino Lightweight Long Sleeve Crew Neck Baselayer (Black 990)