Men's Base Layer Sets 165

Lightweight 165gsm merino is best for mild days, running, cycling and fast hillwalking, and works as a next-to-skin layer under warmer layers in winter. Compare every weight in our merino weight guide.

Both pieces should sit close to the skin without restricting movement, because a base layer only wicks sweat when it touches you. The top and bottoms come in the same size; if yours differ, use the set builder. See the size guide.

Turn it inside out and machine wash at 30°C or lower on a wool or delicate cycle with a wool-safe detergent. Skip fabric softener, dry it flat or on a hanger and never tumble dry.