

🧥 Elevate your base layer game—comfort and performance that never quits!
The MERIWOOL Womens Base Layer Thermal Shirt is crafted from 100% superfine 18.5 micron Merino wool with a 250g/m2 midweight knit, delivering breathable warmth and moisture-wicking performance. Designed for a fitted silhouette, it offers itch-free softness, quick-drying convenience, and natural odor resistance, making it the ideal base or mid-layer for year-round outdoor activities. Machine washable and durable, it combines premium quality with easy care, backed by a 90-day warranty and hassle-free returns.




| Care instructions | Hand Wash Only |
| Closure type | Pull On |
| Fabric type | 100% Merino Wool |
| Neck style | Crew Neck |
S**I
Wonderful Base Layer!
Lovely base layer! It washed well. (I washed it by hand and air dried it.) It is very comfortable with no scratchiness and it is soft and warm. The fit is true to size. I bought the medium weight (250). I would order another one with no hesitation.
C**R
Great product- warm, soft, a comfortable and a good value. Excellent quality merino wool!
Very comfortable and soft, especially after washing this top (which i did on a gentle/wool cycle in the washing machine, but then hung up to dry and only put into the dryer for 5 minutes on wool setting to fluff up - super soft afterwards). Generally,I would not recommend to completely dry merino wool in the dryer- it makes the fabric stiffer. Size: I’m 5’8” and weigh 126 lb with a thin built (A cup bra), and got a SMALL, which fit me well, is not too tight, and the length is actually perfect and drops just below the hip on me (and Iam tall and have longer torso). This top is very comfortable and perfect for very cold to moderate temperature weather. I have worn this underneath of fleece tops/jackets, as well flannel shirts, and it looks also great and its on its own when temperatures are milder (I liked it under my a down vest). I got mine for a trip to Iceland (I just arrived now at the end of May and temperatures range between 30’s to mid 40’s degree Fahrenheit. the price is very reasonable and the quality is definitely comparable , if not better, than some of those famous brands.
J**N
a good purchase
My measurements are chest 37.5, waist 33.5, hips 42, wrist 6.25, upper arm 12 and I ordered a medium. It is just a shade larger than skintight, and fits comfortably. The cuffs sit tight at my wrist so cold air can't blast in, but I can push them back to about elbow. The seams are flat stitched, so even though I'm not used to the panels on the torso I hardly feel them. It's very soft, softer than some of my cotton clothes. The stitching on one cuff did come loose, and instead of double stitching that side has a single line of stitching, but that is holding firm. The hype about merino wool is well deserved. I wore this shirt when it was 30F, 50F, and 70F out and was comfortable, only a little warmer than perfect on the hottest day. I've experimented with 3 wears between washes and no-one notices, not even me. I usually wear this twice between washes, then machine wash cold and line dry with the rest of my laundry. It's typically dry within 12 hours, less if hung high up near the heater (it hasn't been warm or dry enough to line dry outdoors yet). This is a great piece to wear on its own or layered to winterize otherwise summery clothes. Since it's skintight-ish I can comfortably wear it under dresses. We cut out the sheep on the front of the box it came in and have posted it in our bathroom because it makes such a funny face.
J**E
Warm Base Layer
I use this as a base layer when I run or hike in the winter and it works great. Warm, lightweight, and it fits great.
N**L
5 Star top except for the tag
I grew up with scratchy wool and always thought I was allergic but based on the reviews and some chronic issues with trying to sleep comfortably in varying temperatures at night, I decided to try. it I wish I had tried it sooner. SO comfy. Fits great. Even when I do get too warm or dealing with hormone swings, I'm just damp, not soaked with sweat and feeling gross with the need to change When I'm cold, this warms me up in a cozy way. It's like magic how it regulates temperature and breathes. WAY better than anything else I've tried. Of note: It's too warm to wear when working hard outside in the cold and it's not warm enough to keep me warm when I'm just standing around in the cold. But for pajamas, it's perfect over a tank top. It's also great because I don't have to wash it very often and it still stays fresh. Plus when I do wash it, it always hangs dry by evening. (I did dry it in the dryer once accidentally and it came out just fine.) My only complaint is the tag. It's a flexible plastic square glued to the inside of the upper back. While the wool top breathes, that square doesn't so it sticks to your skin. It doesn't hurt to peel off, it's just not pleasant. I dealt with that most nights for months. The last time I washed it, I noticed the plastic had peeled off. Hurray!, I thought. Except just the plastic wore off, NOT the nasty glue that held the plastic on. At least an hour of effort with washing and rubbing t form tiny glue balls and then picking to get the glue balls off without damaging the wool... So yes, I removed one star for the tag. But if having a tag suctioned to your skin isn't a bother, and you consider picking glue balls off wool to be meditative, then enjoy this 5-start top!
B**X
Great product!
Very packable and light but keeps you warm. Great for cold weather layering.
T**P
Base layer that’s more than basic.
I own lots of merino wool — many short sleeved and long-sleeved tops, several jackets from lightweight to heavy, socks. I own pieces from SmartWool, Icebreaker, Unbound Merino, Darn Tough, and a couple of generic brands on Amazon that are likely from China. Most of it has ranged from expensive to very expensive. I’m a hiker/trekker who started buying merino wool when I was cold in New Zealand, and then for layering in the Nepali Himalayas. Merino wool is a revelation. It’s certainly wonderful for outdoor activities. It regulates temperature (makes you cooler on a hot day, warmer on a cold one), it’s soft and comfortable, and it layers like a champ. At night in a lodge deep in the Himalayas, I would put on a merino base layer, a merino hoody and then a lightweight, slim down jacket and I was as cozy as you could get. You can wear it for days on end - it just doesn’t smell and that includes socks that have been hiked in all day. I wash my merino wool clothing very infrequently - mostly when I spill something on it or just want to refresh its looks. But it’s not just for hiking or outdoor activities. It makes a great top to wear with a skirt or pants. I get that it’s expensive, but it’s not fast fashion; if you take care of it, it lasts a long time and so it’s kind of investment clothing. Taking care of it means not washing it more than necessary and storing it in a drawer that has cedar balls or shavings in it (because wool can attract moths and once you see little holes in your garment, you’ve waited too long). I was looking for a particular color of a light or mid-weight base layer to wear with a skirt I have and it just turned out that Meriwool had the color (wine) and from the pictures, perhaps the fit I wanted I was looking for a slim fit - I’m small and fit and don’t like my clothes to be baggy. Their price was less than what I would have paid at one of my usual places ($59 compared to $90-$115 at other companies) which actually made me a little bit nervous, as I know the quality of my other pieces. But I wanted that color, so I decided to give it a try. Well, I’m delighted with my Meriwool shirt. I bought a size small and it fits perfectly (I’m 5’2” and 125 pounds, 34 bust, 29 waist, 25 hips). It’s a great weight, beautiful color, beautiful fit. It’s soft (maybe not quite as soft as SmartWool, but it’s close, and the fit is better and the color more vibrant). If you like a looser fit, size up. One more thing - Meriwool uses ethically sourced wool from Australia, and this is an important point for me. You have two choices when purchasing clothes made from animals. You can choose to not give a damn if the animals are treated cruelly and their feathers, wool, etc., are harvested in painful ways. Or you can care and buy ethically sourced wool products, from farms where animals live natural lives and are not harmed or hurt in the harvesting of their wool. The latter is my choice and this is the disclaimer Meriwool has on their website: “Every Meriwool garment is crafted from ethically sourced wool obtained from sheep who are well-fed, treated humanely, and live natural, healthy lives.” So, I recommend Meriwool to you. It’s well-made and well-priced. I just ordered by second shirt this evening.
K**N
Skip "Big" Brands and Size Down for Perfect Fit!
I had been searching for a quality 100% Merino wool base layer ever since it started getting into winter in my town. I looked at reviews and the quality of various brands- including leading name brands. I tried a different brand's 250 base layer, which is the same price point as MERIWOOL, it was a color I liked and was silky soft, but the sleeves were ill-fitting and huge, the length of the body far too long, yet tight, and so it couldn't be worn as a base layer (more just like regular oddly shaped sweater). Even if I sized down, the proportions would be too strange. So I returned it, and kept up the search.... ENTER MERIWOOL! I love the light and soft heather color options, and after reading reviews, I decided to size down to a Small to get a slimmer fit for a true base layer top. It WORKED! The top fits great in all the right places, including the sleeve width and length. The cuff is long enough to go over the hands but not too long where it bunches when not over the hands. For reference, my height is 5'4", currently 132-135 lbs, current measurements are 37" Bust, 31" Waist, 35" High Hip, 39" Low Hip. My measurements fluctuate as I slim down considerably in spring and summer, another reason why I opted for the small size. The labels are hidden and tasteful, and the fabric is soft and has stretch. Not silky soft but it is very cozy. I have sensitive and dry skin in winter, so I do feel the texture of the wool, but it is not enough to feel itchy, even with nothing underneath. If anything, the texture I can feel more are the flat seams. I have not washed or used this top for any length of outdoor time yet, but if I have a different experience with it after more use, I will update the review to accuracy! In Conclusion: After further research, I am glad I did not buy a brand name item for double the price. I am looking forward to wearing this top under my layering clothes when out in the cold, and by itself to stay cozy at home. I am even considering buying the matching Meriwool bottoms. Best of Luck to you in your endeavors to stay warm!
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