Outdoor Research Alpine Onset Bottoms

Insulating warmth and wicking genius sets a new level for your layering
system’s foundation.

Merino wool has long been heralded as nature’s best
temperature-regulating fabric. With the ability to hold onto heat in
cold temps, manage moisture in humidity or during strenuous activity,
and dry quickly in any type of wet environment, there’s no doubt as to
why we choose merino wool for one of our most important layers: the
foundation. For chilly backpacking, mountaineering, or skiing trips, and
for humid hiking, paddling, and climbing excursions, the Alpine Onset
Collection are the base layers you need to keep your temperature in
check. Using 83% merino wool with a touch of nylon and spandex for extra
mobility, each Alpine Onset piece features a trim fit as your
next-to-skin layer for easy layering and efficient temperature control.
A flat seam construction prevents chafing, and a lightweight, compact
design makes it easy to fit an extra layer or two in your pack. Plus,
merino wool naturally blocks odors – making it an easy winner that both
you and your tentmate will appreciate.

83% merino wool

12% nylon

5% spandex