Your Shopping Bag is Empty
Have an account?
Log in to check out faster.
Your Shopping Cart
Loading...
New Team GORE-TEX Glove Collection dropping soon! Preview Now
New Deviator styles just dropped! Shop Now
Free shipping on orders $99+
Find your perfect jacket. Take the quiz
Get inspired by new fall arrivals. Explore the catalog.
Couldn't load pickup availability
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 ResearchĀ® gear is guaranteed to perform throughout the lifetime of the product.
Orders over $99+ qualify for free standard shipping. Returns are easy and simple. Final sale products are non-returnable.
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.
Form fitting base layers worn under other garments.
Close-cut apparel that moves with the wearer.
A traditional fit for comfort in both technical and casual apparel.