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Icebreaker 200 Oasis Leggings - Women's Review

This is the most durable merino wool contender out there.
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Price:  $90 List | $57.04 at Amazon
Compare prices at 2 resellers
Pros:  Durable, wide range of thermoregulation, comfortable, cute colors.
Cons:  Not super duper warm.
Manufacturer:   Icebreaker
By Amber King ⋅ Senior Review Editor  ⋅  Nov 19, 2018
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76
OVERALL
SCORE


RANKED
#4 of 8
  • Warmth - 30% 8
  • Comfort & Fit - 30% 8
  • Breathability & Drying Speed - 30% 7
  • Durability - 10% 7

Our Verdict

Seeking a durable merino wool bottom? The Icebreaker Oasis 200 bottom offers exceptional performance in all areas of cold weather. Don't be illuded by its thinner fabrics as 200-grams are packed into all corners of this high-quality performer. Thermoregulation is impeccable, offering warmth while you build your snow forts and then go to sleep in them. The stretchy fit is versatile for a plethora of shapes and sizes while the cute colors make it so that you could wear it on its own or underneath a pair of pants. If you've been searching for a high-quality merino wool bottom that is more durable than the rest, you've found it right here. If you're not a fan of the $90 retail price, be sure to check out the REI Co-op Merino Midweight Bottoms that retails for only $80 and offers a similar level of warmth and performance.


Compare to Similar Products

 
Awards  Editors' Choice Award Top Pick Award  Best Buy Award 
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Pros Durable, wide range of thermoregulation, comfortable, cute colors.Cozy and thick fabrics, huge range of thermoregulation, warmExtremely comfortable, elastic and versatile fit, amazing value, cute and streamlined style, retains shape.Warm, great thermoregulation, simple, great valueDurable, quick to dry, breathable, warm, high value.
Cons Not super duper warm.Expensive, not super durableHigh absorption of water.Not durable, less cozy featuresFabric holds moisture, not the most comfortable.
Bottom Line This is the most durable merino wool contender out there.This Editors' Choice provides unbeatable performance in the greatest range of conditions.A versatile synthetic base layer that offers amazing style, performance, and warmth for all-day wear.This is the best valued merino wool option out there.This Best Buy award winner balances performance and value.
Rating Categories 200 Oasis Leggings Merino 250 Bottoms Rho LT Bottoms Merino Midweight Bottoms Capilene Midweight Bottoms
Warmth (30%)
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Comfort & Fit (30%)
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6
Breathability & Drying Speed (30%)
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7
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7
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9
Durability (10%)
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Specs 200 Oasis Leggings Merino 250 Bottoms Rho LT Bottoms Merino Midweight... Capilene Midweight...
Material 100% merino 100% merino Torrent fleece (84% polyester, 16% elastane) 100% merino wool 5.2-oz (176-g) Polartec® Power Grid® 97% polyester
Fabric weight (grams) & relative level of warmth 200 g (lightweight) 250 g (midweight) 150 g (midweight) 200 g (midweight) 176 g (midweight)
Measured Weight (oz) 5.7 oz 7.2 oz 5.75 oz 5.95 oz 6.15 oz
Fabric weights availiable Midweight Lightweight (150), midweight (250) Lightweight & midweight (AR) options Midweight Lightweight, midweight, thermal weight
Cuts avaliable 3/4 length, full length 3/4 length, full length, onsie (full body w/ hood) Full length Full length, boot length Full length
Smelly over time? No No No No Yes
Odor control fabric Naturally odor resistant Naturally odor resistant Polygiene® anti-odor finish Naturally odor resistant Polygiene® permanent odor control
Flat-lock seams (prevents chaffing) Yes Yes Yes Yes Yes
UPF (Sun Protection) No No No No No

Our Analysis and Test Results

This high-quality product offers a wide range of thermoregulation in addition to exceptional durability for a 100 percent merino wool contender. It also sports cute colors and a great style that many of our testers love.

Performance Comparison


The Icebreaker Oasis is a thin  yet warm baselayer bottom. The 100% merino is high quality  offering a great level of durability and thermoregulation for whatever you do this season.
The Icebreaker Oasis is a thin, yet warm baselayer bottom. The 100% merino is high quality, offering a great level of durability and thermoregulation for whatever you do this season.

Warmth


Loaded with 200-grams of merino wool, this midweight base layer bottom is perfect for cold weather. The fabrics feel thin, but the merino wool is packed into a tight and well-crafted package that offers a wide range of thermoregulation. Performing like other midweight pieces, it's perfect for wear underneath an uninsulated pant while getting sweaty on the skin track.

Put it underneath a pair of snow pants or underneath your favorite skinny jeans on colder days. Perfect to wear for cool to cold weather.
Put it underneath a pair of snow pants or underneath your favorite skinny jeans on colder days. Perfect to wear for cool to cold weather.

Or wear it with an insulated pant while sitting under a cold clear night sky while winter camping. The fabric does a great job at regulating temperatures and keeping the skin dry to ultimately keep you warm. We noticed this while hiking and skiing in this piece. It is a warm base layer bottom.

The thinner materials makes this feel like a lightweight option  however  the 200-grams of merino wool fibers is pretty darn insulating.
The thinner materials makes this feel like a lightweight option, however, the 200-grams of merino wool fibers is pretty darn insulating.

Comfort and Fit


Consistent with most products made of 100 percent merino wool, it is nice and comfortable! The merino wool offers a soft touch on the skin while the material doesn't hold moisture to keep you dry all day long. The fabrics stretch nicely to provide a great overall fit for a variety of shapes and sizes. Even our longer legged testers appreciated the extra materials in the length, while our large thighed ladies like the versatile fit. The waistband is simply sewn in and offers great against the skin feel.

Icebreaker Oasis -- Front (model is 5'7" and 140 lbs)
Icebreaker Oasis -- Front (model is 5'7" and 140 lbs)
Side shot
Side shot
Back shot
Back shot

One of the key differences between this the Oasis and other options are the materials don't stretch out after a day of use. We are happy to see this amazing performance feature. Other then that, size is true to fit and because its fabrics aren't super thick, they aren't particularly cozy…but it is comfortable for all-day wear. Lounge around the house with a warm cup of joe or crush it in comfortable style out in the backcountry.


There are many cute styles and colors offered in this weight! Also, choose between ¾ length or full-length options.

Breathability and Drying Speed


The Icebreaker Oasis offers exceptional breathability with its thinner fabric constructs. In our tests, we noticed that the fabric (like other merino wool contenders) does a great job at repelling water. This makes it more water resistant than synthetic competitors. We noticed this in the field as well when we got rained on during a testing run. The water beaded up on the fabric and didn't absorb. It wasn't until it was agitated with the running movement that the fabric finally did absorb water. However, after a short stint of running (after the rain had stopped), the material was magically dry once again. These exact results mirrored our lab tests. Of the merino wool contenders, it absorbed less water (6.75 ounces) and dried out at the same rate as the majority of the contenders. The result? A breathable layer that will wick away moisture to keep you dry and ultimately warm. It provides a exceptional range of thermoregulation for a variety of outdoor endeavors.

During our water tests  the material repelled water and did not sink. This shows that the merino wool does not inherently absorb water until agitated.
During our water tests, the material repelled water and did not sink. This shows that the merino wool does not inherently absorb water until agitated.

Durability


Of the merino wool contenders, the fabrics are tightly packed, well constructed and seemingly highly durable. When out bushwacking through the woods in a couple of our tests (without an overlayer), we didn't note any snags and the material stood up well. In addition, after putting it through the laundry the fabric didn't pill not does it really show any sign of wear and tear. Our conclusion? This is one heck of a durable merino wool contender…not as well as synthetic competitors but one of the best in its class.

The seams and materials of this pant are well built  showing no pilling even after months of wear.
The seams and materials of this pant are well built, showing no pilling even after months of wear.

Best Application


Harboring a wide range of thermoregulation and great durability, this merino wool bottom is suited for pretty much any winter sport. It's cute enough to wear on its own or underneath another layer for a bomber winter outfit. Feel free to use it whether you're pushing to hit all the big summits in a state or to wear while sipping tea on a lazy snowy day.

Go out skinning or hiking in the mountains in this awesomely comfortable piece that thermoregulates through a wide range of temperatures.
Go out skinning or hiking in the mountains in this awesomely comfortable piece that thermoregulates through a wide range of temperatures.

Value


The Oasis retails for $90, which is on-par for high performing base layer options. If you're seeking a durable merino wool base layer, this is your best bet. The price is worth the comparative performance. If you seek something that costs a little less, check out the REI Co-op Merino Midweight Bottoms that retails for only $80. This product offers a smidgen more breathability and offers a similar level of durability.

Conclusion


The Icebreaker Oasis is a well-constructed long john bottom that is sufficient for all types of winter play. Wear it when the temperatures drop from cool to cold. Its thinner construct is easy to layer and fits nicely under pretty much any kind of pant…from snow pant to work pant.


Amber King