Heartwood Merino Crew

The Heartwood Line, a premium collection of 100% Merino wool base layers, is built for comfort, durability, and year-round performance. Designed with natural thermoregulation, odor resistance, and moisture-wicking properties, Heartwood keeps you warm when it’s cold, cool when it’s hot, and comfortable no matter the conditions. The collection features four versatile pieces: Merino Boxers, Merino Bottoms, Merino Crew, and the Merino Quarter Zip. Each piece is crafted from soft, non-itchy Merino wool that can be worn as a base layer for added warmth or on its own for everyday wear. Ideal for three-season use, Heartwood combines technical performance with Arborwear’s trusted ruggedness, making it a reliable choice for both work and play. Free from the distractions of discomfort, you’ll be able to move with ease, stay focused, and take on whatever the day throws your way—whether on the job, in the woods, or on the move.