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Outdoor Research
Alpine Onset Merino 150 Hooded Baselayer Top - Women's

4.333333333333333 out of 5 stars
6 Reviews

Out of Stock

Don't worry though, we have a lot more Women's Baselayer Tops in stock than that.

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Why We Like The Outdoor Research Alpine Onset Merino 150 Hooded Baselayer Top

Outdoor Research went ahead and made the ultimate adventure hoodie: the Alpine Onset Merino 150 Hooded Baselayer Top. The merino wool and polyester blend is lightweight, naturally repels odors, and wicks away our sweat to keep us feeling fresh on multi-day trips or afternoon runs down the mountain. Plus, this hoodie is breathable and quick drying for next-to-skin comfort. No matter what the weather throws at us, we know we can handle it with the hood, thumbholes, and built-in balaclava providing full coverage from both the sun and the cold.


  • Versatile baselayer for trail runs and pow-hunting layering
  • Merino wool is naturally anti-odor and thermoregulating
  • Polyester fibers enhance breathability and moisture management
  • Flat seams reduce chafing for movement comfort
  • Thumbholes and hood provide warmth and protection
  • UPF 30 protects you from harmful UV rays
  • Item #ODRZ8OQ
Responsible Collection
47% merino wool, 47% Repreve (recycled polyester), 6% elastane jersey
Insulation Weight
lightweight (150gsm)
natural attribute of merino wool
UPF Rating
Claimed Weight
skiing, snowboarding, running, hiking
Manufacturer Warranty
limited lifetime

Overall Rating

4.5 based on 6 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 0 reviews
3 Stars - 1 reviews
4 Stars - 2 reviews
5 Stars - 3 reviews

What do you think about this product?


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3 out of 5 stars

June 3, 2024

Warm but no stretch

I got this as a warm base layer, but was disappointed to find that the fabric has very little stretch and a very tight neck. It fits well besides the neck which practically chokes me. I do a little sewing, so will find a way to modify it, but it's disappointing to get a new item that's uncomfortable. It is extremely warm and the maroon is a beautiful color. I'm a large/athletic XL (38C cup) for reference.


Originally reviewed on

5 out of 5 stars

March 20, 2024

Great All Season Layer!

6 months in and this hoodie is my best friend, I seriously wear it everywhere! Skiing, hiking, and the grocery store- often back to back- so thank goodness it doesn't hold smell. The design is so well thought out, (hello pony tail slit!!) and the cut is flattering. It does fit looser than a true base layer, (its easy to fit another layer underneath) but I'm okay with that b/c its not to tight for casual everyday wear. Like other comments mention the material is a little bit scratchy/itchy. But either I've gotten used to it or it's gotten softer b/c I don't even notice it anymore! The fabric isn't sheer/see through at all. I'm 5'10/athletic build & medium was perfect.

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Originally reviewed on

4 out of 5 stars

February 13, 2024

Good coverage, not particularly soft

I appreciate how the neck and lower face can be fully covered when the hood is up. The material is pretty stiff, however. I am hoping it softens up after the first few washes. Fits on the slightly larger size compared to most medium baselayers I have worn.


Originally reviewed on

5 out of 5 stars

February 9, 2024

Love this hoodie!

I love this hoodie. The shape of the hoodie part is really nice - your eyes are not closed in...keeps your face warm and can be worn under a helmet or hood. Merino wool is warm and not scratchy. Lightweight warmth! Pretty colors!


Originally reviewed on

5 out of 5 stars

January 23, 2024

love the balaclava

the wool kept me warm and especially full-coverage balaclava protect from windy icy!


Originally reviewed on

4 out of 5 stars

June 19, 2023

Solid winter warmth if a bit scratchy

[This review was collected as part of a promotion.] Some people have a pretty low tolerance for the scratchy feeling of wool fabrics. This shirt is not for them. I don't tend to mind much and recognize the natural wool fiber feel keeping me warmer - I even love the smell. The color, fit and quality are all great. So unless you have a strong aversion to the feel of wool on your skin then this is a great base layer for cold and unpredictable weather conditions.


Originally reviewed on