Customer Reviews Smartwool Merino 250 Base Layer Crew

If you layer up with Smartwool, it feels like "winter doesn't exist." Start with this 100% merino wool base layer, throw on a cotton T-shirt (or whatever) for style, and then add a Smartloft jack (or Active Fleece Full or 1/2 Zip) on top. It's amazing how effective they are together. For sizing: I am 5'6" 120 lbs. I take a small in the base layers, but medium in any jacket. (For extra mobility and comfort in the legs though I have switched to a medium in the pants base layer. The waist band is less restrictive and more comfortable.)

Excellent base layer for cold climates

Have seen minus 70 degrees in Alaska and know this would be a great added layer of warmth to any clothing. It is so soft and comfortable! This is the Best under layer I have ever worn.

This top is so functional and flattering. I usually go for size small but chose to get a medium since I hate the feel of a tight base layer. The medium is so comfortable, not tight in the armpits even with wide shoulders and breasts. I have been wearing this top around my house in the cooler winter weather, on dog walks, snowshoes, and even skating in -20C and have yet to catch a chill. Better yet, the print is STUNNING!! I bought this top in the flower pattern and cant get over how pretty it is. You could wear it as a regular shirt, but even just seeing the pattern beneath a sweatshirt collar looks nice.

Adorable pattern. Very warm!

I'm so happy with my black long sleeve top. I've literally already gotten my cost per wear on it, it keeps me so warm and is not itchy. If I didn't just get laid off I would get the leggings asap!! I've already raved about Smartwool on my TikTok, it's such a better investment for natural fiber base layers than heattech.

Every season I treat myself to a new classic merino base layer crew. So comfortable and warm and just the right thickness.

This is just the best design ever! But beyond cute, this shirt is so comfortable and soft! I sized up from the size guidelines, because it's close fitting. But I probably could have gotten a large and been fine as was suggested. It's a wear this every time it's clean kind of shirt. A winter staple for sure, especially if you live to be outside! It can be layered and worn alone . I feel cozy and warm . I will definitely buy more!

Love these shirts , but one a year, I do like my clothes loose so sized up to a latge

My new favorite top. I want to wear it under everything and looks great even on it's own

Usually I'm pretty sensitive to itchy fabrics (which wool has a reputation for), but this is so soft! I haven't had any sort of discomfort with it. Plus, it keeps me warm as a thermal layer or even as a regular shirt. And I love the design!!

The color palette is a perfect fit for my typical wardrobe. It is a very soft and comfortable layering piece with a vest jacket.

I use this for winter hiking. I have another Smartwool base layer and was expecting a second the same. However, this one is a heavier weight than I was expecting. Still comfortable, very warm, and I love the colour. Fits perfectly.

This is the perfect underlayer - warm, moisture-wicking, and thin enough to fit easily under clothes.

I love the fit of smart wool tops. The sleeves are always long enough and the fit is flattering. I really like the pattern on this particular top.

My sister comes from Florida to New Hampshire every year and she freezes at Christmas time. I bought this for her. I am sure that she will love it. I live in Smart Wool all winter.

I work and sleep outside 5 days a week year round. I bought this together with the base layer bottom a few weeks ago as an under layer and it's been great. Keeps me warm in cold weather and as the day warms up is breathable and not too sweaty. I originally bought a large since I was right between the med/large sizing. It was a little too big so I returned it and bought a medium. The customer service was satisfactory and the return process was simple.

I'm 75 years old and absolutely love a soft and warm Smartwool base layer under a sweater all winter long. My adventuring adult sons introduced me to your wonderful product and I've become a Smartwool ambassador among my friends! You could easily expand your marketing toward the robust elderly who simply seek warmth for a cold winter walk!

I love this base layer. It's thick, soft and has the perfect amount of stretch to it.

Great fit, great quality and love the patterned option (I usually always have this in black).

I had bought smartwool tops quite a long time ago, probably more than 10 years. And still love them. But these new ones, same name but definitely upgraded in style, are even better! I bought two and probably will buy at least 1-2 more.

Would love it more if it was so snug but it will be warm for those cold days

I've purchased two of these so far - I love them for comfort and warmth everyday with fleece leggings because they are long enough to cover the crotch. Nothing beats this flexible pairing for active ladies!

This is a great use for not only everyday wear, but also in the mountains at 30 degrees and below!

I won a dozen of these tops and they are my go to top for cooler weather and throughout winter. Everyone need at least two! I'm a size 10 and wear a medium for winter layering and a large for normal daily wear. I recommend gentle cycle machine wash in look warm water and hang to dry. . Cold or hot water washing can shrink them. These are quite soft and fit perfectly!