How to Choose Base Layers
Icebreaker Oasis Crew Long Underwear Top - Women's
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With its warm, lightweight merino wool and offset seams, the women's Icebreaker Oasis crew long underwear top keeps you comfortable during hikes and other activities in cool weather.
Shop similar products- Soft, nonirritating merino wool offers lightweight warmth next to skin and resists odors naturally
- Lightweight merino wool wicks away moisture, dries quickly and breathes well to regulate temperature for outstanding warmth in cool weather
- Fabric offers protection from UV light with a rating of UPF 50+
- Flatlock seams reduce chafing, offset shoulder seams will not rub under backpack straps and side seams wrap toward the back to prevent hipbelt chafing
- Machine washable; line dry or dry flat in shade
- The women's Icebreaker Oasis crew long underwear top has a slim fit
- Icebreaker will replace your garment within 1 year of purchase if it has been damaged by faulty fabric, stitching or manufacturing; see Icebreaker website for details
| Best Use | Multisport |
|---|---|
| Shirt Type | T-shirt |
| Fabric | Merino wool |
| Sun-Protective Fabric | Yes |
| UPF Rating | 50 |
| Moisture Wicking | Yes |
| Quick Drying | Yes |
| Underwear Weight | Lightweight |
| Sleeve Length | Long Sleeve |
| Gender | Women's |
Icebreaker Clothing - Women's
| 2X | 3X | XS | S | M | L | XL | |
|---|---|---|---|---|---|---|---|
| Numerical Size | 0-2 | 4-6 | 8-10 | 12-14 | 16-18 | ||
| Bust | 42 - 46 | 46 - 49.5 | 30 - 32.25 | 32.5 - 34.5 | 34.5 - 37 | 37 - 39.5 | 39.5 - 42 |
| Waist | 36 - 40 | 40 - 44 | 24 - 26 | 26 - 28 | 28 - 30.5 | 30.5 - 33 | 33 - 36 |
| Hip | 45 - 48.5 | 48.5 - 52 | 33 - 35.5 | 35.5 - 38 | 38 - 40 | 40 - 42.5 | 42.5 - 45 |
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.
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PattiM
Boise, ID, United States
Can't beat Icebreaker
10 years ago
I bought this in black, size small. (I'm 5'2" and 106 lbs). Fits perfect. And....wow. So soft and warm! Doesn't seem as tight fitting as some base layers, and I didn't want it to. I like that I can push the sleeves up if I want. The bottom of the shirt is long enough to tuck in or otherwise not ride up. Good to have that extra fabric on the bottom. Throw a scarf on my neck, and it looks good as an outer layer. The neckline is higher than I would have chosen, but that does help with warmth.
Yes , I recommend this product
EarthWoman
Virginia
Wear all the time as baselayer
11 years ago
I am 5'6" 34B 130 lbs and ordered a small for a snug baselayer fit. I am very cold natured so the snug fit helps retain bodyheat. I can wear it for days without it retaining any body odor. To me, it is just a bit itchy. It keeps me neither too hot nor too cold...I can sleep in it without overheating (unlike other long sleeve tops). It wicks well.
Yes , I recommend this product
EChun
San Francisco
Great shirt
9 years ago
It runs a little small in my opinion, but once you find the right size it is wonderful. It is light weight and warm under a nice flannel shirt. It's not scratchy at all.
outdoors50
New England
Love it
11 years ago
Nice, thin, baselayer. I love merino washable products. Hiking, running, wearing as layers in winter. It's a very deep, bright 'fusia' I'm not sure why I expected from the picture. I love it, but it is bold! Feels v. smooth and good next to skin.
Yes , I recommend this product