Merino 250 Baselayer Crew - Men's
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Warmth meets comfort with the Smartwool Merino 250 Baselayer—soft, breathable, and adventure-ready.
Smartwool's best-selling and warmest baselayer, the Merino 250 Baselayer Crew, got an upgrade with flatlock seams and seamless shoulders, boosting mobility and minimizing chafe. Whether we're touring the backcountry or lapping the resort, we stay comfortable and fresh with the soft and smooth fibers regulating our body temp, letting our skin breathe easy, and fending off odors.
Details
- Warm baselayer crew that can be worn alone or layered
- Toasty baselayer for your frigid on-mountain pursuits
- Merino wool construction for optimal thermoregulation
- Flatlock seams reduce friction for comfortable movement
- Smooth shoulder panels increase pack-wearing comfort
- Slim fit reduces bulk for layering ease
- Item #SWLZ86T
- Material
- 100% merino wool
- Insulation Weight
- midweight (250gsm)
- Fit
- slim
- Center Back Length
- [medium] 27.5in
- Style
- crew
- Anti-Odor
- natural attribute of merino wool
- Claimed Weight
- 9oz
- Activity
- skiing, snowboarding, winter camping, mountaineering, hiking
- Manufacturer Warranty
- 2 year
Reviews
Q&A
Overall Rating
4.5 based on 14 ratings
Review Summary
Fits True To Size
Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.Customer Images
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Selecting an option will reload the available reviews on the pageOctober 9, 2024
Can't go wrong with Smartwool.
- Familiarity:
- I've used it several times
As always the merino 250 baselayer is consistent with previous purchases. Keeps me warm from Georgoa to Norway. Worth the full price as well.
Originally reviewed on Backcountry.com
September 15, 2024
Smartwool Merino 250 base layer
- Familiarity:
- I've put it through the wringer
Perfect base layer to wear under a 3 layer Gore Jacket in winter in the mountains.
Originally reviewed on Backcountry.com
March 24, 2024
Great Baselayer
- Familiarity:
- I've put it through the wringer
I bought one of these in January and skied for six weeks trying various layers to stay warm and still have the best mobility. The best combo was an under armour short sleeve short, the Smartwool baselayer and a Free Fly Bamboo Heritage fleece. Even at the coldest temps I was warm. I bought two more of these Smartwool baselayers.
Originally reviewed on Backcountry.com
March 5, 2024
Great base layer
- Familiarity:
- I've used it once or twice and have initial impressions
Bought this for a ski week at Big Sky. Love Smartwool and this is no different. Very soft and comfortable. Lightweight but still very warm. Wore it 3 days straight and still no odor. Love it!
Originally reviewed on Backcountry.com
June 21, 2023
Great baselayer
- Familiarity:
- I've put it through the wringer
I have (2) Smartwool250 base layers. I use them backcountry backpacking. In warmer weather I use one for my evening wear/sleeping. Last year on a cold weather trip I used the second one as a daytime shirt. They keep me warm and don't pick up odors after a week of backcountry wear. Love them.
Originally reviewed on Backcountry.com
December 29, 2022
Excellent second layer
- Familiarity:
- I've put it through the wringer
Perfect as a pajama top to wear around the house and as a second layer over a snug fitting next to skin layer. I typically wear a Patagonia capeline mid-weight base layer under a smart wool 250
Originally reviewed on Backcountry.com
October 20, 2022
Nice shirt
- Familiarity:
- I've used it once or twice and have initial impressions
I decided to keep this shirt because I wanted a merino wool base layer in grey that could not only be worn as a base layer, but also worn over a dress shirt like a sweater. This shirt can do both. However, it is not as thick and warm as WoolX's version of this shirt. I would have gone will Woolx, but they don't produce this anymore in grey, only black. 4 stars for a great shirt but also 4 stars because for about the same cost there is a nicer and warmer quality version, albeit in a different color.
Originally reviewed on Backcountry.com
May 14, 2021
Perfect!
- Familiarity:
- I've put it through the wringer
I love my 100% merino wool, Smart Wool 250 base layers! Have gone with me everywhere over the last 3 years. Don?t fix what isn?t broken, Smart Wool!!
Originally reviewed on Backcountry.com
February 16, 2021
Finally Warm
- Familiarity:
- I've used it once or twice and have initial impressions
I bought this for my husband to keep him warm. We are in our 70?s and he gets cold just around the house. I?m an all seasons hiker and live by wool but I finally convinced my husband this is the way to go, even at home. He loved it. .soft and warm, not itchy. The close fitting style was fine for his older body although he is used to looser fits. The closer fit is also how it helps hold in the body heat so he is getting the concept. We?ll get more!
Originally reviewed on Backcountry.com
January 18, 2021
Love the base layer, but ..
- Familiarity:
- I've used it several times
Website measure of chest suggested a medium which was too large. The exchange for a small worked well - but the back and forth of driving to UPS, trying to find a phone number, confirming that both packages were delivered and finally connecting to chat was cumbersome. As Thoreau wrote: Simplify, Simplify.
Originally reviewed on Backcountry.com
November 18, 2020