Best Men's Thermal Underwear Bottoms
60% Cotton/40% Polyester.
Reviews
Find Best Price at Amazon"These things work well in the sense that they keep you warm without overheating you during cold (sub zero Fahrenheit) climates, but they don't fit you that well in the area males would like the most support. It's not a bad purchase for the price, but if you want an all-in-one product, I'd spend the extra money to get maybe full or mostly synthetic thermal pants."
"These are great."
"These make a real difference in keeping my lower body warm."
"I like them enough that I bought three pairs afterwards.Maybe a bit smaller or tighter than I'd have preferred, but definitely better than OK."
"Tall and thin."
"Nice, soft, comfortable and warm for cool weather."
"I ordered based on the sizing chart and I think its a little small for my taste."
"These long johns not only fit well, but they insulate well!"
Super cold can be super harsh. 100% Cotton.
Reviews
Find Best Price at Amazon"These are the thickest and warmest Long John's I have ever bought and they are very comfortable.Getting the right size cam be a little difficult."
"Very happy with the heavy knit and quality of the underwear."
"I was a bit shocked at how small the waist is on these."
"Our issue with this is the cuffs are really tight and I bought a size bigger just to get a larger cuff, that was a bit disappointing."
"I will say with thick socks it’s tough to get the pants at the bottom over them."
"Order the next size larger than usual as the waist and ankle bands are EXTREMELY tight."
"These are nice."
"Advertised as super cold weather thermals."
100% Cotton, Inside: 65% Cotton, 25% Merino Wool, Outer Layer: 10% Nylon.
Reviews
Find Best Price at Amazon"The waist is perfect, but the crotch is way too big and low, and the legs are short."
"Here are measurements of the medium sized bottom, before and after washing/drying on low heat."
"The main reason im giving these 3 star is because the crotch/inseam is really bulk/long..i like my thermals to be more form fitting, like a boxer brief with legs and warmth essentially."
"Bought these for my husband, great fit and this was the second pair i have purchased just different color.."
"These are a nice step up from inexpensive Fruit of the Loom long johns."
"super warm, kept him warm as temps dropped below zero and he had to be outside for a time. kept him warm, fit great."
"I read the reviews and bought one size larger than I normally would."
"I ordered a size up and the fit well so maybe get a size bigger to be safe."
Best Men's Thermal Underwear Bottoms
Classic 2-ply cotton-rich thermal underwear. 60% Cotton/40% Polyester.
Reviews
Find Best Price at Amazon"I look at box and their medium size was smaller than the medium size on Amazon."
"I work in the cold every day and these really make the difference."
"I bought some duofold shirts and they shrank a bit. Overall very warm and light weight, even under your shirt or pants."
"These long undies look great and feel great."
"They fir perfectly, they're well made and no major shrinkage when washed."
"I like these, the fabric is soft which makes them comfortable, but beware, these are not to be use in a really cold environment, you'll be good if you're going to be in a mild cold otherwise these are not as warm as you might think."
"Nice, soft, comfortable and warm for cool weather."
"Im 5' 8" with 31" or 32” waist, 175 +/- 5 lbs."
Best Men's Big & Tall Thermal Underwear
The BASIC 2 Layer garment has been engineered to trap air between the layers of fabric to provide a natural warmth shield to keep you warm and comfortable. 60% Combed Ring Spun Cotton/40% Polyester.
Reviews
Find Best Price at Amazon"It was lighter than I expected but works well in the cold."
"Good to layer on these cold days well made, product that fits my 6ft."
"Working so far."
"I ordered this for my husband, but ended up returning it because it was too big for him."
"Works well."
"It arrived as planned."
"Husband liked them, kept him warm."
"Fabric is too sparse to be an effective winter base layer."
Best Men's Thermal Underwear
Classic 2-ply cotton-rich thermal underwear. 60% Cotton/40% Polyester.
Reviews
Find Best Price at Amazon"I look at box and their medium size was smaller than the medium size on Amazon."
"I work in the cold every day and these really make the difference."
"I bought some duofold shirts and they shrank a bit. Overall very warm and light weight, even under your shirt or pants."
"These long undies look great and feel great."
"They fir perfectly, they're well made and no major shrinkage when washed."
"I like these, the fabric is soft which makes them comfortable, but beware, these are not to be use in a really cold environment, you'll be good if you're going to be in a mild cold otherwise these are not as warm as you might think."
"Nice, soft, comfortable and warm for cool weather."
"Im 5' 8" with 31" or 32” waist, 175 +/- 5 lbs."
Best Men's Thermal Underwear Tops
Here is your all-purpose everyday use thermal designed for warmth and comfort soft two-layer protection barrier, combined with a close-to-body fit and softness for superior comfort moisture control to stay dry and a tag free label all with comfort in mind. Flat lock seams to avoid irritation.
Reviews
Find Best Price at Amazon"A solid 6 hrs and I wake a perfect."
"I bought this top to give as a gift and got the matching pants as well."
"It isn't the waffle-type thermal."
"The only reason I gave it a 4 and not 5star rating is because I ordered a white and a black in Amazon prime for about $17 each, on the box they both said $19.99..I went to reorder another black one and now they are $40..not sure if it's a mistake on Amazons behalf or not, but if the msrp is 19.99 then it should not be $40..and again it's only for the black one."
"I love the more expensive brands but due to cost, I refuse to wear them when i can put holes or rip them from work activities. I wouldn't sit in a tree stand with them if it were lower than 10 degrees without other protective clothing."
"Bought for my husband for layering."
"Totally different fit from the heavy weight Duofold shirt, I think it runs a little large."
"I don't know why so many people are stating that these tops run big and the sleeves are too short."
Best Men's Thermal Underwear Union Suits
Inside Layer: 100% Cotton; Outer Layer: 65% Cotton, 25% Merino Wool, 10% Nylon Outer Layer.
Reviews
Find Best Price at Amazon"There is no sizing chart provided for this union suit, so I will spare you the agony I had to go through ordering the wrong size: Men's Sizes: Small: Chest 34"-36". Pants/Waist: 29"-30". Medium: Chest 38"-40". Pants/Waist: 32"-34". Large: Chest 42"-44". Pants/Waist: 36"-38". X-Large: Chest 46"-48". Pants/Waist: 40"-42". 2X-Large: Chest 50"-52". Pants/Waist: 44"-46". This info came off the package itself."
"Would definitely recommend for someone who needs thin, warm layers for working outside in the cold."
"Husband is in construction and works outdoors almost all year, right through the winter too in Northern Idaho."
"This duofold wool suit will keep you nice and warm in the winter, this is my forth pair."
"My husband works outside all year around and the winters can get very cold."
"They really should not be put into the dryer, but if you do, definitely put them on low or air dry!"
"They seemed a bit large when I opened them, but after washing them, they shrunk just enough to fit right, and have not shrunk further."
"A bit large but otherwise fine as it shrinks a little during the first wash or two."