Is this warmer than Icebreaker's 150-weight base layers?

Yes. The 200 weight is a midweight fabric, noticeably warmer than the 150 Oasis and lighter than the 260-weight winter layers. It works as a three-season base layer.

Can I wear it several days without washing?

Merino resists odor well, and most owners report several days of wear between washes on trips. Air it out overnight between uses.

The fine merino jersey is generally described as soft and non-itchy, even on sensitive skin. A minority of wearers still find wool slightly prickly at first.

How should I wash it?

Use a cool, gentle wool cycle or hand wash with a wool-safe detergent, then air dry flat. Avoid tumble drying, which can shrink it.

Is it a base layer or a standalone shirt?

It is designed as a base layer, but the plain crew cut means many people wear it on its own for cool-weather hiking or casual use.

What is the fit like?

It is a close-fitting base layer cut with gusseted underarms for mobility and a drop tail hem for coverage. Size up if you want a looser fit over another shirt.

Icebreaker Men's Merino 200 Oasis Long Sleeve Crew Thermal Top

Q: Where is the Icebreaker Men's Merino 200 Oasis Long Sleeve Crew Thermal Top cheapest?

At eBay, for $60.00, 29% under what the other stores charge, as of our latest check.

Q: What do buyers say about the Icebreaker Men's Merino 200 Oasis Long Sleeve Crew Thermal Top?

Rated 4.8 out of 5 from 3,400 ratings.

Q: Where can I buy the Icebreaker Men's Merino 200 Oasis Long Sleeve Crew Thermal Top?

6 stores we checked sell it, including eBay, Steep & Cheap, Backcountry.com, Hollands Country Clothing, REI.

Best price now

$60.00at eBayChecked Nov 3

29% under what the other stores charge

Compared across 6 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission.

Visit eBay

What reviewers say

4.8 / 53,400 ratings

Owners rate it very highly, with most praise going to the softness of the merino, its odor resistance over multiple days and its fit under other layers. Complaints are few and mostly about durability and laundering care.

What people mention

Fabric softnessPraisedWearers say the merino feels soft and not scratchy, even directly on skin.
Odor resistancePraisedOwners report wearing it several days in a row without it smelling.
WarmthPraisedThe 200 weight is described as warm for cold days while still breathing during activity.
DurabilityCriticisedSome long-term users report holes at seams and friction points after repeated hard use.
CareMixedOwners note it needs gentle washing and air drying to avoid shrinking and pilling.
FitPraisedThe cut and drop tail hem are said to stay in place under midlayers and packs.

Size	Chest (approx)
Small	33"-36"
Medium	36"-39"
Large	39"-42"
XL	42"-45"
XXL	45"-48"
3XL	48"-52"

Size

Chest (approx)

Small

33"-36"

Medium

36"-39"

Large

39"-42"

42"-45"

XXL

45"-48"

3XL

48"-52"

About the Icebreaker Men's Merino 200 Oasis Long Sleeve Crew Thermal Top

The Icebreaker Merino 200 Oasis Long Sleeve Crew is a base layer top made from breathable 100% merino wool jersey. The merino fiber is soft, lightweight and naturally odor resistant. It keeps you warm when it's cold and cool when it's warm.

The top has gusseted underarms for mobility and comfort. Offset shoulder seams and flatlock seams help reduce friction. A drop tail hem adds coverage.

Material

100% merino wool jersey

Style

Long sleeve crew neck base layer

Underarms

Gusseted

Seams

Offset shoulder seams and flatlock seams

Hem

Drop tail

Odor resistance

Naturally odor resistant