Outdoor Research Alpine Onset Merino 150 Hoodie offers exceptional warmth and moisture management for high-output activities. Crafted from a lightweight merino wool blend, this base layer features a built-in hood for added protection and thumb loops to keep sleeves in place during movement. The flat-seam construction prevents chafing, while the natural odor-resistant properties of merino wool ensure freshness throughout the day. Ideal for skiing, hiking, or climbing in variable conditions.