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Merino Wool Base Layer Pants
The perfect base layer pants are here with Meriwool’s Merino wool leggings. Enjoy comfort and warmth while outside or wear them around the home for total relaxation.
Features & Benefits
Soft & Comfortable
One of the most comfortable materials available, Merino wool is 100% all-natural and keeps you warm without any itch. These base layer pants are crafted from superfine 18.5-micron Merino wool and are great underneath other garments for added warmth.
Heavyweight Base Layer
If you’ve been looking for thermal pants that are comfortable while also being warm enough to handle very cold weather, the solution is here! These heavyweight base layer leggings are Meriwool’s warmest and thickest option and will keep you toasty day and night.
Easy Care
Not only is Merino wool warm and comfortable, but it’s a material that is completely renewable. Compared to synthetic fabrics, it requires fewer washes which means you’re working to consume less water. Simply hang them up to air dry and enjoy knowing that you’re helping the earth.
Breathable Thermal Pants
The idea of warm thermal pants might make you wonder if you’ll be sweating in no time, but Merino wool features some incredible properties that will keep you cool and dry. With both moisture-wicking and odor-resistant abilities, these thermal bottoms are incredibly breathable.
Why Merino Wool?
Adaptive Clothing
Unlike other materials, Merino wool is a reactive material that adapts to your body's temperature. It regulates so that you are never too hot or cold in any weather.
Naturally Warm
Originating from Merino sheep from Australia that endure temperatures as low as 5 degrees, Merino wool is a lightweight, naturally warm fiber.
Itch-Free
Unlike regular wool fiber that is heavy, coarse, and itchy, Merino wool actually has thinner, finer fibers that make it soft to the touch and cause no irritation to the skin.
Ultra Soft
Merino’s fibers are much smaller in diameter than other wool which gives the fibers the ability to bend softly with increased flexibility. The result? Soft to the touch.
laurieloe
Reviewed in the United States on February 1, 2025
I’m very impressed with this item. I’m a waterfowl hunter so I often have to sit in very cold and freezing temps for hours at a time. These keep me very warm underneath my waders and leggings. I’m only 5’ tall so they’re a little long for me and I just fold the cuff at the bottom and then it fits perfect. It’s worth every penny.
Nurse Tara
Reviewed in the United States on January 14, 2025
Worth it. High quality wool holds heat and doesn’t ever stink like plastic fabric can hold bad odors that can’t be washed out. So much better than plastic polyester or whatever other euphemism they come up with for junk. This is the real thing. Happy customerOn this one!
Angel Cobb
Reviewed in the United States on January 11, 2025
Originally, I gave this product 5 stars. Last year, I wore these thermal leggings for snow removal. I worked 8+ hrs in them out in the cold one time and they kept me reasonably warm. I loved these. However, when I busted them out for this year, I noticed they started to fall. There are holes in them and the fabric is not like it used to be. I didn't obsessively wash these or use harsh chemicals. I use hypoallergenic detergent on them and would always let them air dry. I've probably worn these 20 times total and I've definitely not washed it 20 times. Its disappointing to have only gotten 1 winter's use out of them which is why I've changed my rating to 3 stars.
iurp59
Reviewed in the United States on April 18, 2024
Really like the fact they are wool and yet soft, thick, and comfortable. They will be used as a base layer under jeans for ice fishing in the winter time and have already been used as leggings under a long tunic style top on cool days in the spring and fall. They have a smooth finish on the outside of the material and soft and cozy brushed inside. Planning to hand wash to keep them in great shape for years to come.
Customer
Reviewed in the United States on November 22, 2022
Stay warm during a trip to Iceland. At first a little loose around the knees, but very fashionable fit after washing. Also, not itchy like some I have used before.
Renée
Reviewed in the United States on January 25, 2022
These leggings are very thick. I wear them by themselves as leggings and not as a base layer all the time when I go out and even when it's zero degrees outside they still keep me warm. I have washed them several times, (inside out) and put them in the dryer but don't dry them all the way. They hold their shape nice and don't bag at the knees. I purchased a Small. I'm 5' 2" and was almost 150 lbs when I bought them and I've lost 10 lbs and they fit even better now. I've bought more expensive ones from another company before but had to send them back each time because the seams did not hold up after one wash since they tattered. These do not do that. Very pleased.
Sevyrance
Reviewed in the United States on September 14, 2020
When I took these out of the package, I was skeptical about them being 100% wool, simply because of how soft and smooth they are. I did a burn test. They ARE 100% wool, and they are so damn comfortable! Because the wool fabric itself does not contain any spandex (the waistband has a little spandex strip though obviously) they do not form fit to every little curve and crevasse the way spandex leggings do, but they are a very dense, fine, tight knit fabric that actually clings nicely to where you want it to without being too tight. They stretch considerably yet retain their shape well and are not baggy. I ordered a small. I am 5'2", 115 lbs and curvy with 24" waist and 38" hip. I was worried about the waistband being too big since I had to order a small insted of an xs so it would fit my hips. These are not really high waisted, so the band doesn't quite come up to the smallest part of the waist so it actually fits perfectly and is not too big. I wanted them to fit as loosely as possible without being too big because the more thinly they have to stretch to fit, the less warm they are. The ankles are just a little bit tight when putting your foot through but are fine once they're on and it's not a problem. They are thick and warm and very well made. Someone commented in the reviews that they are not a heavyweight wool, and that's straight up bull***t. These are a 400g knit fabric and it is hard to find anything heavier than a 320g in 100% wool leggings that you'll still pay literally double what you pay for these. They are very soft and not super scratchy like I'm used to wool being. Perfect for layering or wearing on their own. An excellent quality garment that I have now bought a second pair of (and another for a friend, and the 400g heavyweight shirt), as I will be wearing these every single day during the cold months. WORTH THE PRICE. Dont ever put wool in the dryer! Lay flat to dry. BUY THEM!
Amy
Reviewed in the United States on October 19, 2020
I'd like to clarify some details about this item. The waistband is slightly bigger than I expected but it still fits OK. The ankles are tight AT FIRST. Wash them inside out on the gentle cycle in cold water. That'll loosen them up for the right fit quickly, after just one wash. They length is short for me but my inseam is 35" so most regular pants are too short for me. They're mid-rise. For reference, I'm 5'9", 24" waist, 34" hips and skinny (120 pounds) with long legs.
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