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.
** Final Sale: Sorry, we do not accept returns or exchanges on masks, neck gaiters, or face coverings. **
Specs
Product :
#277659s
Fabric :
47% Merino Wool, 47% Recycled Polyester, 6% Elastane Jersey
Outdoor Research® gear is guaranteed to perform throughout the lifetime of the product. Get your gear back on track by filing a claim on our Warranty Page
Have a question? Problem? Other request? We’re here to help you find a solution.
Our customer service is waiting for your call at 855-967-8197, on weekdays Monday-Friday between 7am-5pm PST. If you prefer email, you can send your query to info@outdoorresearch.com
Thanks for getting in touch. We can’t wait to get you back outside with your gear.
Care
Machine wash cold. Do not bleach. Drip dry. Do not iron. Do not dry clean.
Hats size guide
Hats
Measurement shown in:In
Cm
Unisex
S
M
L
XL
US hat size
6¾” – 7”17.2 – 17.8
7⅛” – 7¼”18 – 18.4
7⅜” – 7½”18.7 – 19
7⅝” – 7⅞”19.3 – 20
Circum
21½” – 22”54.6 - 55.8
22¼” – 22⅞”56.2 - 58.1
23” – 23⅝”58.4 - 60
23⅞” – 24”60.6 - 61
–
1 SIZE
S/M
L/XL
US hat size
––
6¾” – 7⅝”17.2 – 19.3
6¾” – 7¼”17.2 – 18.4
7⅜” – 7⅝”18.7 – 19.3
Circum
––
21½” – 24”56.2 - 61
21½” – 22⅞”54.6 - 58.1
23” – 24”58.4 - 61
How to measure
Measure around your head where the headwear would fit comfortably.