- Essentials Refresh
Socks
Merino Hiking Sock
A cushioned merino crew sock with a reinforced heel and toe, sized by shoe size
3 colors
$24
Tees & Base Layers Base Layer
Merino Long-Sleeve Base Layer
A 170gsm merino jersey base layer with flatlock seams, close fitting and odor-resistant
$88
A 170gsm merino jersey base layer with flatlock seams that do not rub under a pack strap. Worn alone or under the knitwear; it regulates temperature and does not hold odor.
- Close fitting
- 170gsm merino
- Flatlock seams
- Made in Portugal
- Essentials Refresh
In stock. Ships from our own warehouse in Portland, OR. Orders placed before 11AM PT ship the same business day.
- Free US shipping over $75. Order before 11AM PT, ships the same business day from Portland, OR.
- Free exchanges for size or color. 45 days to exchange and 30 to return, unworn, with the tags on.
- Repaired, not replaced. Seams, zips, snaps and buttons fixed free for two years.
Details
| Fabric | Merino jersey, 170gsm |
|---|---|
| Fit | Close fitting — size up for a relaxed fit |
| Seams | Flatlock — no ridge under straps |
| Care | Machine wash cold on wool cycle, line dry |
| Made in | Portugal |
Fit, wear and care
- Take your usual size for a next-to-skin fit. Size up one if you want to wear it as a relaxed long-sleeve tee.
- Wear it alone or under knitwear. The flatlock seams leave no ridge under a pack strap.
- Air it overnight between wears; merino does not hold odor the way cotton does.
- Machine wash cold on the wool cycle. Line dry.
- Keep it away from hook-and-loop closures, which pull merino jersey.
- Wash knitwear cold, by hand or on the wool cycle, and always dry it flat
- Wash denim rarely, inside out and cold, and hang it to dry
- Never tumble-dry wool, cashmere blends or waxed cotton
- Re-wax waxed jackets once a season and never machine-wash or dry-clean them
Fabric and construction
100% merino wool jersey, 170gsm, flatlock seams
100% merino wool jersey, 170gsm. Made in Portugal. Flatlock seams throughout, raglan sleeves, a slightly dropped back hem and a tagless neck with the care label sewn at the side seam.
Shipping and returns
- Standard: 3–6 business days (US)
- Express: 2–3 business days (US)
- International: US, CA, UK, EU, AU, JP — 6–12 business days
- Ships from our own warehouse in Portland, OR. Orders placed before 11AM PT ship the same business day.
- Free exchanges for size or color. 45 days to exchange and 30 to return, unworn, with the tags on.
Ideal for
- Hiking
- Cold commutes
- Travel without laundry
- Layering under knitwear
Why buy
- Odor-resistant for days
- Flat seams
- Available on Essentials Refresh
Wear it with
Pairs well with
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Beanie
Merino Rib Beanie
A double-layer merino rib beanie with a deep cuff, in one size that genuinely stretches
5 colors
$42
-
Sweater
Merino Quarter-Zip
The Crew's extra-fine merino with a brushed-metal quarter zip and a stand collar
3 colors
$158
Questions
Asked about Merino Long-Sleeve Base Layer
How does it fit?
Close. It is a base layer and is cut to sit next to the skin. For a relaxed fit, size up one.
Is it warm or cool?
It regulates: warm under a sweater in the cold, comfortable alone on a mild day. It is a 170gsm jersey, so it is a light layer, not insulation.
How many wears between washes?
Merino resists odor, and people travel for days in one. How many is up to you and your nose.
Will it itch under a pack?
The seams are flatlock, so there is no ridge under a strap. We cannot promise how merino feels on your skin.
Can I subscribe?
Yes, at 15% off each box on Essentials Refresh.
Is it in a set?
Yes. The Layering Set holds this base layer, a Merino Rib Beanie and a pair of Merino Hiking Socks for $138, which is $16 less than the three bought apart.
Reviews
What customers say
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Showing the 8 most recent of 1,368 reviews
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Sigrid H.
Verified buyer
Navy · 5'7", usually M, bought M: close, as a base layer should be
Four days of hiking, one shirt
It did not smell on day four. I did. The shirt was fine.
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Mateo G.
Verified buyer
Black · 5'10", usually M, bought M: close
No seam under the pack straps
I usually get a red line on my shoulders. Not with this.
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Petra L.
Verified buyer
Charcoal · 5'6", usually S, bought M: sized up as advised
Sized up to wear it alone
In my usual S it is skin-tight. The M works as a long-sleeve tee.
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Fergus W.
Verified buyer
Black · 6'0", usually L, bought L: close
Under the Fisherman Rib
This is the answer to the prickle of the big sweater.
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Anouk V.
Verified buyer
Navy · 5'8", usually M, bought M: close
Small hole at six months
A pinhole near the hem, probably from my belt buckle. Merino jersey is delicate. They repaired it, since it was at a seam, but be gentle with it.
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Caleb N.
Verified buyer
Charcoal · 5'9", usually M, bought M: close
Cold commutes
Bike to work at freezing. This, a shell, done.
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Yara S.
Verified buyer
Black · 5'11", usually L, bought L: good sleeve length
Long enough in the arms
Raglan sleeves that reach my wrists. Rare for me.
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Linus A.
Verified buyer
Navy · 6'1", usually XL, bought XL: close
Dries slowly on a line
Overnight indoors was not quite enough in a damp cabin. Fine at home.
Your history
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Merino Long-Sleeve Base Layer