Icebreaker Siren Sweetheart Merino long sleeve base layer

Experience ultimate comfort with the Siren Long Sleeve Sweetheart. This soft, stretchy merino wool base layer features an improved fit and innovative corespun fabric, wrapping a nylon core in merino for extra durability without sacrificing softness. Naturally breathable, odor-resistant, and temperature-regulating, it’s your go-to top for any adventure. From hiking and yoga to travel and everyday wear, its sleek design and flattering neckline make it the perfect, versatile layer for year-round use