Best Men's Thermal Underwear Union Suits
Duofold originals created the base layer category with the first bi-ply thermals soft cotton against the skin and paired with the natural warmth of merino wool for superior thermal insulation, perfect for a wide range of low-impact activities. 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."
"My husband works outside all year around and the winters can get very cold."
"I have had my original pair for two years and worn every single day in the cold weather. And if my boys leave it a tad too long in the dryer (ahem) that solved that."
"UPDATE: My husband has worn these pretty much everyday during 2 long Oklahoma winters and around the house as jammies."
"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."
"First "union suit" I have ever had so I don't really know how to judge it."
"These are the perfect thermals."
Made of premium 8 ounce fabric, Carhartt's midweight cotton union suit delivers total body warmth in one comfortable garment. 100% Cotton.
Reviews
Find Best Price at Amazon"Review of Red Large Regular Fit. I am slowly becoming a Carhartt fan across the board. The dryer has helped the fit in my favor, but still can reach top shelf things around the house without discomfort."
"He would have preferred a button up square flap, but I couldn't find anything in the product description to say what kind of opening there was in the back."
"I wish they made these for tall men."
"Carhartt is a great brand, and these are really great."
"It's a Union Suit, so it's made to be worn under clothing and is snug."
"Bought these for my husband to wear."
"Great product but only 3 stars b/c there is a flaw that is too annoying!"
"weird fitting and did not provide much warmth, had to further layer myself."
This men s sleepwear suit features waffle-knit fabric with a slight stretch for all-over warmth and comfort. Machine wash and dry.
Reviews
Find Best Price at Amazon"Wore it for a theme christmas party and I was surprised how warm it was even when I was outside."
"IT fits great and looks great, but the hole on the back flap is oddly placed."
"Old school long johns."
"Very comfortable."
"Really love this, bought it on a whim and I wear it all the time."
"Length was ok, but way too large in the mid section (stomach and hips area)....."
"Tragically, the "Back Flap" reveals a ridiculously small "necessity hole" which unfortunately is positioned in the wrong place."
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"Inspired by a photo on the product page, I even tried wearing a buttoned collared shirt underneath one, and this looks great- the Duofold shirt looks like a lightweight sweater over the top and classes up nicely."
"Given my experiences in using this shirt for motorcycling, I expect this shirt will work great for doing outdoor work in the winter."
"This shirt and a rain layer will probably be good down to about 45 degrees if you have the long underwear and good socks on and of course any fabric pant."
"I've trusted Duofold products since I can remember, and I've hunted and fished, backpacked and camped, and skied and sledded as many of the 60 years I've been around on this planet."
"It was the old style thermal underwear waffle-weave (not sure if that's actually what it's called), so I was disappointed when I first saw the smooth, almost jersey t-shirt feel of this new shirt."
"It does get quite cold here in New England in the winter so I wanted a thermal long sleeved T-shirt for the bottom layer."
"I bought this top to give as a gift and got the matching pants as well."
"It isn't the waffle-type thermal."
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."