The Smartwood Merino 150 Bottom offers lightweight performance in cool or cold weather. Looking for a base layer that will thermoregulate in brisk weather while you log miles on the trails? This might be the one! Constructed of 87 percent merino wool and 13 percent nylon, this blend does an excellent job wicking away moisture while keeping your core temperature warm. The integration of the synthetic fibers makes it more durable than 100 percent merino wool options, like the SmartWool Merino 250 Bottom, a midweight option and our Editors' Choice award winner. That said, it's not as warm or cozy as these thicker contenders. If lightweight and durable performance are what you see, the Smartwool Merino 150 certainly delivers. Take it with you on your aerobic adventures or while you camp in cold conditions.
Smartwool Merino 150 Base Layer Bottoms - Women's Review
Compare prices at 3 resellers Pros: Durable, strong wicking power, comfortable features, cute color options
Cons: Not very warm
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|Pros||Durable, strong wicking power, comfortable features, cute color options||Cozy and thick fabrics, huge range of thermoregulation, warm||Extremely comfortable, elastic and versatile fit, amazing value, cute and streamlined style, retains shape.||Warm, great thermoregulation, simple, great value||Durable, quick to dry, breathable, warm, high value.|
|Cons||Not very warm||Expensive, not super durable||High absorption of water.||Not durable, less cozy features||Fabric holds moisture, not the most comfortable.|
|Bottom Line||This lightweight option features a merino wool blend that pulls together many great pros.||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||Merino 150 Base Layer Bottoms||Merino 250 Bottoms||Rho LT Bottoms||Merino Midweight Bottoms||Capilene Midweight Bottoms|
|Comfort & Fit (30%)|
|Breathability & Drying Speed (30%)|
|Specs||Merino 150 Base...||Merino 250 Bottoms||Rho LT Bottoms||Merino Midweight...||Capilene Midweight...|
|Material||87% Merino wool, 13% nylon core||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||150 g (lightweight)||250 g (midweight)||150 g (midweight)||200 g (midweight)||176 g (midweight)|
|Measured Weight (oz)||5.2 oz||7.2 oz||5.75 oz||5.95 oz||6.15 oz|
|Fabric weights availiable||Lightweight (150), midweight (250)||Lightweight (150), midweight (250)||Lightweight & midweight (AR) options||Midweight||Lightweight, midweight, thermal weight|
|Cuts avaliable||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
The Smartwool Merino 150 Bottom provides lightweight and durable performance that is best for cool weather. Take it with you on your next aerobic endeavor or simply slide it on when the temperature plummets in the shoulder seasons.
Offering a decent level of warmth, the Smartwool Merino 150 bottom is great to wear while sledding, building snowmen, and going out for hot cocoa in cold weather. Packed with 87 percent merino wool and 13 percent nylon, this bottom does an excellent job wicking away moisture to keep dry in cool to cold weather. While this bottom isn't loaded up with tons of fibers, it provides good enough warmth for a lightweight design. It features 150 grams of this material. We wore it while hiking, skiing, and running. In all cases, our legs and core were left warm, happy, and happy. We just wouldn't recommend it for the coldest places on Earth. And we'd also recommend wearing it with an additional insulating layer to optimize overall insulation. If you seek a warmer merino option, be sure to check out the SmartWool Merino 250 Bottom, our Editors' Choice award winner.
Comfort and Fit
Given its thinner construct and merino-wool hybrid design, it does a good job at providing lavish all-day comfort. The lightweight design (weights 5.2 oz) and its features offer a great fit.
The waistband features a broad section of material that covers the elastic on the waistband for enhanced comfort against the skin.
The materials stretch nicely, providing coverage for women of all shapes and sizes. Also, the elastic around the ankle isn't constricting in any way, shape, or form to allow a diverse fit. The fit is true to size and our testers love the cute styles that are available. While this product isn't as cozy as other merino wool contenders (because of its thinner design), it's still an excellent option for all-day wear underneath a pair of snow pants or with work pants. It layers easily due to its slippery face fabrics. Our verdict? Comfortable and well-fitted.
Breathability and Drying Speed
As a lightweight design, it does an awesome job breathing while out on the trail. Taking this bottom hiking and skiing, we learned that it off-loads heat well. The integrated nylon does an exceptional job at wicking away moisture while the merino wool provides insulation and great breathability. In our tests, it absorbed a moderate amount of water (6.65 ounces) and provided an average drying time.
As a result of these results, we're happy to report that we'd recommend this bottom for everything from a morning run to an extended backpacking trip into the backcountry. Not only will the fabric wick and breath well, but it will dry out quickly as well.
This is one of the most durable merino wool options out there. Integrating a sliver of synthetic fibers ensures that it retain its shape while in motion. Also, we didn't notice any pilling, stitching fly-aways, or anything that resembled a durability issue. When running through dense underbrush, the fabric didn't snag and stayed nicely intact. That said, because it is merino wool, we suspect it is not as durable as a 100 percent synthetic contender because of the properties of the materials. However, we didn't observe any issues in our testing period.
Wear it climbing at the crag, hiking around the back forty, or while skiing at the resort. This lightweight merino-wool hybrid offers an awesome level of durability and performance that makes it quite versatile. Skin for miles on cold days or take it for a meandering walk on a cool day. This lightweight option could be the next great integration for your outdoor exploring gear kit.
Priced at $80 this is a good deal. The materials and performance are on point, making it a great value.
This lightweight merino-synthetic blend provides exceptional durability and performance in one temperature regulating package. Wear it while running your next winter trail or while skinning uphill in the backcountry.
— Amber King