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Outdoor Research
Alpine Onset Bottom - Men's

4.428571428571429 out of 5 stars
56 Reviews
Current price: $40.03 - $44.48 Original price: $88.95
Up to 55% off
Color:Loden

Size:

Size Chart

Quantity


Why We Like The Alpine Onset Bottom

We love the natural breathability and odor resistance of wool, which is why we're choosing the Alpine Onset Bottoms for our cold-weather endeavors. From skiing to backpacking and everything in between, these thermals provide us with a warm base layer that feels soft and comfortable against the skin.


Details

  • Wool blend thermal bottoms for skiing and winter adventures
  • Merino wool is breathable, comfortable, and resists odor
  • Recycled polyester is added for durability and moisture wicking
  • Flat-seam construction eliminates chafing and irritation
  • Gusseted crotch enhances mobility
  • Item #ODRZ8JS
Responsible Collection
Recycled/Repurposed
Material
47% merino wool, 47% Repreve (recycled polyester), 6% elastane
Insulation Weight
lightweight (150gsm)
Fit
slim
Style
tights
Anti-Odor
natural attribute of merino wool
UPF Rating
33
Claimed Weight
6.4oz
Activity
ski, snowboard, hike & camp
Manufacturer Warranty
lifetime

What do you think about this product?

Overall Rating

4.5 based on 56 ratings

Review Summary

1 Stars - 2 reviews
2 Stars - 1 reviews
3 Stars - 5 reviews
4 Stars - 11 reviews
5 Stars - 37 reviews

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4 out of 5 stars

January 10, 2025

Basic but high quality product.

The leggings are the perfect base layer for all your cold weather activities. I’ve used them snowboarding, climbing, backpacking, and jogging. 150 is just the right amount of warmth that doesn’t cause you to overheat while exerting yourself. My only suggestion would be to incorporate tall/ short sizing rather than just XS to XL. As so someone with a very skinny waist I had to go with the small size, which rides up significantly as I’m 6,2ft. Not a big deal as I always wear these with long socks.

Clayton P
ExpertVoice.com

Originally reviewed on ExpertVoice.com

1 out of 5 stars

January 9, 2025

Dye transfer problem

Functionally, these perform well as a lightweight base layer. However, even after three washes they continue to transfer dark-colored dye to my legs every time I wear them. Hard to recommend these as a result since they are meant to be worn next to skin.

logan b
5 out of 5 stars

June 15, 2024

Another Stellar Item

These are very very well anatomically mapped leggings that fit very comfortably. Once again OR has outdone itself in the realm of outdoor clothing, this time in merino baselayers that I would argue are better quality than some of the brands that are known for making nothing but.

Thomas T
ExpertVoice.com

Originally reviewed on ExpertVoice.com

5 out of 5 stars

May 6, 2024

I would buy this product again

Fits perfectly, very comfortable, use for hicking and skiing.

Donald
outdoorresearch.com

Originally reviewed on outdoorresearch.com

5 out of 5 stars

April 22, 2024

Comfortable and Warm

This was comfortable and warm under a wind protected covering at -10 for snowboarding. Was able to use for multiple times on same trip with no issues.

Jay
outdoorresearch.com

Originally reviewed on outdoorresearch.com

5 out of 5 stars

April 22, 2024

Excellent

Excellent comfort and performance. I deliberately wore the whole set in warmer and colder environments than it's made for, no issues. Be mindful when it's new the Red color way puts off a lot of red fuzz.

Barndon
outdoorresearch.com

Originally reviewed on outdoorresearch.com

4 out of 5 stars

April 20, 2024

not a bad product, def kept me warm, but mobility wasn't the best.

jesus R
ExpertVoice.com

Originally reviewed on ExpertVoice.com

5 out of 5 stars

April 5, 2024

I would buy this product again

I wear pants like this often for hiking, doing yoga, etc. I especially like these merino bottoms.

Marc
outdoorresearch.com

Originally reviewed on outdoorresearch.com

5 out of 5 stars

March 19, 2024

Very comfortable for bigger man

I am 6'3", 235, and these are very comfortable. They feel almost athletic like. Sometimes I'll even wear them to bed normally.

ExpertVoice.com

Originally reviewed on ExpertVoice.com

5 out of 5 stars

March 11, 2024

Warm, comfortable, and well made!

I am a blind individual, and it is therefore always difficult to purchase the correct items online without getting to physically handle them first. However, Outdoor Research gear has always been reliable and trusted by me. The description of the alpine merino liners on the wetsite was great, and the measuring chart also was exact. Therefore I could purchase the correct size, and had a good idea of the product I was purchasing. I live in the Boston area and have used my liner to go hiking during very windy and cold days. In particular, I was blown away with how the liners performed during a wet and windy hike. I wore my liner and rain pants, and even though the wind made it feel like temperature was in the single digits during my hike my legs were perfectly warm. The liner has also served me well during more practical day-to-day situations like waiting for an Uber in downtown Boston during a windy day at rush hour. Also, the liner is extremely comfortable and I have found that it feels good whether I am wearing it under my jeans or at home by itself. Construction is durable and seems like it will last for a long time; many years of hiking and day-to-day use. Definitely a recommended item from a brand that never disappoints!

King Blindman
outdoorresearch.com

Originally reviewed on outdoorresearch.com

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