The Merino men's crew neck top is made from 100% fine Australian Merino Wool and at 230gm is the perfect thermal base layer. Merino Wool acts as a thermo-regulator, keeping you cool in warmer climates and warm in colder climates. It's odour repellent, extremely breathable, and non-itch with a soft hand feel. This product listing is for the Kalamata colourway.