Winter is coming, which means it’s time to layer up.
Here are 13 of the best thermal underwear pieces to shop this season.
These Walmart Dupes Are Just as Buttery Soft for Half the Cost
Our editors independently select these products.
Your base layers should retain body heat without leaving you itchy, scratchy, or sweaty.
Look for thermals that use temperature-regulating fabrics, like wool and spandex, to stay warm without overdoing it.
Keep an eye on design, too.
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Keep scrolling to shop 13 of the best thermal underwear pieces from brands likeSmartWool,Ibex,and more.
Available in black, navy, and various heather options.
These best-selling thermal undies are warm without ever being stuffy or sweaty.
Throw them on under snow gear, jeans, leggingswhatever you oughta layer up.
What reviews say: Great for staying warm inside during winter and a great base layer.
These natural fibers dont retain odor like the synthetic fibers.
Always a great addition to a wardrobe.
Theyre also fleece-lined for added warmth.
What reviews say: I have just purchased my third pair.
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They are light in weight but provide great warmth in the cold.
I spend a lot of time hiking, snowshoeing, and cross country skiing.
The stretchy, flat seaming wont ever dig or chafe.
Great for cold weather workouts and gym sessions when shorts alone wont cut it.
Available in black and grey.
What reviews say:These are perfect wicking underwear for hiking and camping.
My second time purchasing them.
Theyre seamless and sweat-proof, made from dreamy Merino wool thatll keep you cozy on the slopes and beyond.
What reviews say:I love the SB merino base layers as they are so warm and comfortable.
Theyre also thermoregulating, so youll never overheat, and UPF 50 for added protection.
Available in black, grey, white, and pink.
Warm or cool, these are perfect for staying comfortable at night.
What reviews say:This was everything I was expecting and I am so glad I bought two pairs!
Perfect winter gear for living in the cold city or hiking in the high country.
What reviews say:This is the second item we have tested from Kora and we are impressed.
If you appreciate natural materials and want a very high performing base layer, then look into yak wool!
Excellent for adding heat but never bulk.
The cold gear base layer has never disappointed me.
It is fantastic in the cold weather whether Im skiing, snowshoeing or even snowmobiling.
Its made of a cotton-poly blend thats snug but never stiff or uncomfortable.
A great, budget-friendly option for quality thermals.
What reviews say:Love these thermals.
Great quality for the price and I love how vibrant the red is even after several washes.
Keeps me perfectly warm in a NY winter without being too uncomfortably heavy when transitioning from outside to indoors.
What reviews say:Outstanding in feel, quality, and warmth!
Hate having to take them off!
The poly-spandex blend wicks moisture and sweat, keeping you dry and cool when you get moving.
Wearing them under daily clothes during winter is very practical.
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