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The Alpine Onset 150 Base Layers are a lightweight insulator, featuring soft merino wool blended with recycled polyester for superior moisture wicking and durability and are the foundation for an elite performance outerwear kit.
Outdoor Research® gear is guaranteed to perform throughout the lifetime of the product.
Free shipping on orders $99+! Need it by the holidays? See our shipping page for all deadlines. Final sale items are not eligible for return or exchange. For more information, see our returns/exchanges page.
Combining the naturally anti-odor properties of merino wool, and the added durability of recycled polyester, the lightweight Alpine Onset Merino 150 wool base layers are an easy choice for winter layering without overheating. Ideally worn directly next to the skin, and built with a no-chafe flat seam construction, the naturally anti-odor properties of these layers make them an excellent choice for multi-day trips, extended backcountry adventures, and activities where layering up without overheating is paramount. An essential collection, the Alpine Onset Merino 150 base layers are the foundation upon which great performing outerwear kits are built.
*All sizing is based on your body measurement.We adjust the garment for intended fit and intended use.
Conforms to the shape of the body.
