15 Of The Best Pairs Of Thermal Underwear For Anyone Who Hates Being Cold

Things are about to get toasty, my friends.

1. A women's thermal underwear set available in 40 different colors and patterns so you have an excuse to wear one every single (chilly) day.

amazon.com, amazon.com

Promising review: "Love, love, love these! The fabric is soft and silky against my skin. There is some fleece inside but it is so fine you can barely see or feel it. It fits tight as it should in order to be invisible beneath clothing but does not feel constricting in any way and sizing appears appropriate. The color looks just like the picture. It is not bulky at all so jeans slide on easily. It provides enough extra warmth to feel toasty but not too hot. I really like the way it feels against my skin! I tend to want to wear them all the time during the cold weather so I will be ordering more." —Cheryl R.

Get it from Amazon for $20.99+ (available in sizes XS–3XL).

2. A set of two men's thermal underwear sets boasting a fleece lining designed to be snug and keep you warm while you're out hiking, skiing, shoveling, or even just hanging indoors.

amazon.com, amazon.com

Note: Some reviewers suggest ordering one size up.

Promising review: "OK...just found my new everyday wearable in the winter. These fit amazingly and are FREAKING WARM. I've worn them two days in a row now. I'm buying two more pairs so I have six total, that way I can wear them every day. If you like to be warm, buy this. New favorite under clothing. AWESOME!!!!!!" —james

Get it from Amazon for $38.99+ (available in sizes S–XXL and three colors).

3. A women's moisture-wicking thermal underwear set complete with an ultra-soft fleece lining to provide you with the *perfect* amount of toastiness.

amazon.com, amazon.com

Note: Some reviewers suggest ordering one size down. Also, if you're a fan of moisture-wicking clothing (and TBH, who isn't?) these moisture-wicking bras would pair *perfectly* with this underwear set. Take that, sweat glands.

Promising review: "I bought a set of these thermals in each color for my trip to Alaska over the Thanksgiving holiday. I wore them under jeans, leggings, and snow pants, depending on the activity of the day. At -14 degrees, they kept me warm and they are super soft and comfortable." —SugarSkull702

Get it from Amazon for $26.59+ (available in sizes XXS–3XL and 12 colors).

4. A stylish women's four-way-stretch compression thermal set made of bamboo charcoal that's built to be ultra-absorbant and capable of withstanding harsh weather.

amazon.com, amazon.com

Promising review: "Exceeded my expectations in every way! I love the red. Makes me feel like I'm in the movie Tron. Love working out in these in the house. Love wearing these underclothes while doing outdoor activities in cool weather (pretty much eliminates windchill). Love wearing these under pajamas now that nights are cooler. I ordered one set, loved them so much, and just received two more sets. They hold up great in the wash, too. As I said, love 'em for so many reasons!!" —Sandra

Get it from Amazon for $34.99 (available in sizes S–XXL and three colors).

5. A pair of women's 100% merino wool bottoms promising to lock in body heat while still being breathable and moisture wicking.

amazon.com, Amazon

(Side note: Here are 33 of the best pairs of plus-size underwear you won't ever want to take off.)

Promising review: "SO HAPPY WITH THESE. I spent hours outside in snowy mountains, 5–30 degrees, and wore them under my snow pants. They kept me so warm and always dry. They're very comfortable and very lightweight. I was afraid the wool would be itchy but I never felt any discomfort. Worth every penny." —Meredith J

Get it from Amazon for $99.95+ (available in sizes XS–XL and six colors).

6. A pair of men's Fruit of the Loom thermal underwear bottoms that are so soft and comfy they might start taking over your cold-weather wardrobe.

Amazon

Note: Some reviewers suggest ordering one size down.

Promising review: "These are very good basic bottoms. They are not a skimpy type of thermal bottom, either. They look like they will last. They have good cuffs so you can get them past your joints. If you stick with your size they will cling to your limbs to keep the warmth in. I will be buying more." —home handy man

Get it from Amazon for $10.18+ (available in sizes S–5XL, four colors, and packs of 1–4).

7. A men's 100% silk underwear crewneck from L.L. Bean to toss on and wear as is or as a base layer when you're out and about. You really can't go wrong with one of these tees.

L.L. Bean

Promising review: "I bought this for my husband because I have found silk tops to be an invaluable part of my life living in Vermont. I literally wear silk every day. Now my husband does the same and he continually chirps, 'I just don't know how I lived without this!' It's SO warm and so light, sometimes I forget I am wearing it!" —Caroline

Get it from L.L. Bean for $49.95 (available in regular sizes S–XL, tall sizes L–XL, and three colors).

8. A women's plus-sized thermal underwear set for you to wear under all your favorite chilly-weather outfits, that way you don't have to hide your stylish digs under a big winter coat!

amazon.com, amazon.com

And while we're on the topic of stylish digs, here's a gentle reminder that winter is, in fact, the most stylish season – and these pieces of cold-weather clothing most definitely support that claim.

Promising review: "I bought these to wear under my coveralls for when the temperatures drop or we have snow. They are insanely soft and stretchy! I think they are made well and are worth the money!" —Ashley

Get it from Amazon for $25.99+ (available in plus sizes 16–30 and 11 colors).

9. A women's thermal underwear crewneck top that looks like a smooth, regular tee on the outside, but its interior is lined with super-plush fleece to keep you toasty all day and night.

Walmart

Promising review: "This top gets 10 stars!! This is made for frigid weather. Hands down the very best. I sometimes just wear it as a shirt. I'm going to buy more." —AlohaGrama

Get it from Walmart for $12.44 (available in sizes XS–4X and four colors).

10. A lightweight and stretchy men's thermal set designed to keep in *just* enough body heat to achieve the perfect warm temp. Bonus points for these babies never riding up, even when worn under other pants!

amazon.com, amazon.com

Note: Some reviewers suggest ordering one size up.

Promising review: "I never write reviews for anything, but these are some comfortable long johns, man. Silky smooth and warm as soon as you put them on. The best part? THE LEGGINGS DON'T RIDE UP WHEN YOU PULL OTHER PANTS OVER THEM. I'm buying another set of these and won't ever buy from a different brand for cold weather again." —Jordan

Get it from Amazon for $30.99 (available in sizes XS–4XL and six colors).

11. A women's 100% silk underwear scoop-neck tee from L.L. Bean with a truly loyal following — some reviewers say they've been wearing these undershirts for decades.

L.L. Bean

(And what's better than pairing this silky underwear with a super cozy sherpa jacket? Hello, toastiness!)

Promising review: "I've been wearing these silk undershirts for about 25 years. I love them for the extra warmth in the winter. I wear them under my L.L. Bean waffle shirts around the house and even to sleep in! They are super light, too!" —barbara

Get it from L.L. Bean for $49.95 (available in sizes XS–XL and two colors).

12. A pair of men's Under Armour HeatGear compression base layer leggings fully equipped with anti-odor technology, moisture-wicking fabric, and mesh panels for ventilation — in other words, your new favorite leggings.

Under Armour

OK, so these aren't "technically" thermal underwear, but they're so warm and layerable that they pass the vibe test and definitely rank up there with the rest of these ultra-comfy undies! (On that note, here are a ton of other warm leggings you'll want to wear all winter long.)

Promising review: "I'm very impressed with these leggings so far. Fit is true to size and they are very comfortable. They're great for running, walking, or hanging around the house." —Flyer67

Get it from Under Armour for $35 (available in regular and tall sizes XS–4XL and five colors).

13. A women's 100% merino wool mid-weight thermal top so soft and snuggly you might find yourself buying your next ones in bulk. You'll never need to layer up with six sweaters to keep warm (like Joey did in that one episode of Friends) ever again!

amazon.com, amazon.com

Promising review: "The hype about merino wool is well deserved. I wore this shirt when it was 30 degrees, 50 degrees, and 70 degrees out and I was comfortable, only a little warmer than perfect on the hottest day. This is a great piece to wear on its own or layered to winterize otherwise summery clothes. I can comfortably wear it under dresses." —Julianne Bellin

Get it from Amazon for $59.99 (available in sizes XS–L and eight colors).

14. A fleece-lined men's thermal underwear set designed to be worn in extreme cold...so that trip to Alaska you were planning? Go ahead and pack a few of these to take along with you.

Amazon, amazon.com

Note: Some reviewers suggest ordering one size up.

Promising review: "I bought this as my base layer for a trip to Alaska and it was amazing. It's super comfortable and long enough to stay tucked into your pants." —Portia

Get it from Amazon for $22.99+ (available in sizes S–6XL and 22 colors).

15. A men's micro-fleece-lined thermal underwear set touting 7K+ 5-star reviews from people who can't believe they didn't buy a pair sooner.

amazon.com, amazon.com

Promising review: "Nice warm base layer. Just took a walk in 25-degrees calm weather and felt nice and comfortable the whole walk. The material is suuuuper stretchy and hugs your whole body. Now I'm inside and just wearing it as a shirt. I'm also not sweating to death. The material really breathes well and I'll be more than happy to buy two more pairs. 5 stars." —Justin

Get it from Amazon for $21.98+ (available in sizes XS–3XL and 12 colors).

You, after realizing thermal underwear is truly one of the best creations known to mankind:

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Reviews have been edited for length and/or clarity.