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  • Corespun fabric: soft merino wool fibers are wrapped around a nylon core for strength and durability, while retaining next-to-skin softness; Lycra® spandex adds stretch
  • Updated with an improved fit over last season
  • Sleek design and a flattering neckline for everyday comfort and layering


View all Icebreaker Women's Long Underwear Tops

REI membership


Best Use Casual
Shirt Style Scoop
Fabric 83% merino wool/12% nylon/5% Lycra spandex
Moisture Wicking Yes
Underwear Weight Lightweight
Sleeve Length Long Sleeve
Gender Women's

Size chart

Sizing notes

Measurements are stated in inches unless otherwise indicated. CHOOSING THE RIGHT SIZE: If your body measurements are midway between two sizes, select the smaller size for a tighter fit or the larger size for a looser fit. If your body measurements result in different sizes, we recommend using your chest measurement for tops and your hip measurement for pants.

Rated 5 out of 5 by from Best long sleeve shirt ever! Great with jeans, a skirt or if you work in the medical field it's awesome to wear with your with scrubs, under your top, it's so lightweight or alone with your scrub pants. I own 1/2 a dozen, they're super verisitle and will hold up well over the years if washed on a gentle cycle in a garment bag. I hang mine to dry over night and they're ready to go anywhere the next day. I love the new red!
Date published: 2016-09-21
Rated 3 out of 5 by from Will be returned I had very high hopes for this shirt as my husband swears by Icebreaker and wears his Icebreaker shirts all the time. I am normally allergic to wool but all the reviews said this shirt feels like cotton, doesn't itch, etc. I put the shirt on and within seconds was itching and feeling uncomfortable. I tried it again later as I had specifically bought it for a hiking trip we were about to leave for and I really, really wanted to like this shirt but I just couldn't stand the feel of it on my skin. For the price I was the expecting something much more comfortable.
Date published: 2016-10-12
Rated 5 out of 5 by from great fit, lovely fabric I bought this shirt to use under sweaters and it's perfect for that purpose. The fit is excellent, with sleeves that are nice and long, and the fabric is very fine and silky. I bought it online so didn't have a chance to compare with other weights of Icebreaker shirts, but if I were looking in a store I would also check the 200 wt base layer shirt, as it might be good for this purpose as well. I haven't checked off all the pros possible, as I haven't got it wet or been out in the wind with it or done any of the other things that would test it further but so far, it's a great shirt.
Date published: 2017-01-04
Rated 5 out of 5 by from Second skin During the winter I live in my icebreaker layers. This shirt fits under my shirts that aren't warm enough to wear on their own during the winter months. Fits snug enough to layer. True to size. I wish it came in more colors. I'm wearing it so much I'm thinking of getting another one. Particularly like the v-neck because most of my shirts are v-neck.
Date published: 2016-12-20
Rated 5 out of 5 by from Versatile Perfect for travel. Can be used as under layer or as a top for evening. Can be washed out in hotel and be dry by morning. I have had a version of this since Icebreaker first made it in New Zealsnd. Lately this neck style has been hard to find. Hope the keep it in stock.
Date published: 2016-12-19
Rated 5 out of 5 by from Nice après ski wear Its great to slip into something simple and stylish for dinner after guiding all day. This top can be dressed up or down, layered or stand alone. I now own two...grey and classic black. Atleast one of them is always in my duffel!
Date published: 2017-04-18
Rated 5 out of 5 by from This is a wonderful first layer shirt I typically buy medium but large was just the right fit here. The shirt feels like a second skin - not too thick, not too thin, just right.
Date published: 2017-04-14
Rated 5 out of 5 by from Classic warmth Love Icebreaker for it's fine warmth and styling. If I could only have one shirt this would be it. Dress it up, dress it down.
Date published: 2017-04-18
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