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SIMIYA Thermal Underwear Set for Men Long Johns with Fleece Lined Base Layer for Workout Skiing Running Hiking

  • Based on 444 reviews
Condition: New
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Availability: Only 5 left in stock, order soon!
Fulfilled by Amazon

Arrives Monday, Dec 30
Order within 23 hours and 19 minutes
Available payment plans shown during checkout

Size: X-Large


Color: Navy Blue


Package Dimensions ‏ : ‎ 1 x 1 x 1 inches; 1 Ounces


Item model number ‏ : ‎ WU15


Department ‏ : ‎ mens


Date First Available ‏ : ‎ August 4, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Dec 30

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Cozy as can be…
Size: Large Color: Black
Perfect second skin underclothes or straight to bed in the winter months. Warm, cozy and well made.
Reviewed in the United States on November 22, 2023 by T. Hill

  • Light and warm
Size: Medium Color: Black
Good quality
Reviewed in the United States on November 5, 2023 by Placeholder

  • Nice Fitting Thermals
Size: Large Color: Grey
I recently lost some weight and the elastic on my old set was giving out. These are very comfortable and should serve its purpose well. It hasn't been too cold to really test these out, but comfort wise they are great. They are form fitting without being too tight and the seams are all flat, so no hot spots / pressure points. ... show more
Reviewed in the United States on November 13, 2023 by EP3eDoubleAnchor

  • The Good, Bad, and Overall...
Size: XX-Large Color: Black
The Good: Extremely soft and surprisingly warm for such thin material. When I put these on I feel like a superhero. I work on a military base in the Middle East and our network room is very cool (where I spend most of my day). As soon as I put these on I instantly feel the heat building. Easy to clean and easy to put on and take off. The Bad: I'm in the Middle East so my window of comfortably wearing these has a short window. Overall: If you region has winter then you will love these. I wore thermals before but they were thick and limited leg flexibility (behind knees) and could be a bear to put on and take off. These slip on like a sock and are extremely comfortable. Recommend. ... show more
Reviewed in the United States on October 29, 2023 by Animated Puppets

  • Comfortable and a nice weight
Size: Medium Color: Black
I’m using these for this fall’s Hunting season. The set is a nice weight as the don’t add much if any bulk so everything else still Fits over them just fine. They do also add a significant level of warmth. I’d buy them again
Reviewed in the United States on November 1, 2023 by HTK

  • Perfect for cold weather
Size: XX-Large Color: Navy Blue
Didn’t think that these would be as warm as they actually are. They are perfect for snow Time weather.
Reviewed in the United States on November 13, 2023 by K P

  • Comfortable
Size: Large Color: Black
Very comfortable as a winter set. Tried it on and wasn't too bad. I had immediate washed it to see if the shrinkage was there. There's wasn't any shrinkage or missing stitching. Soft and lightweight.
Reviewed in the United States on October 27, 2023 by Kia S.

  • they almost fit me correctly!
Size: Medium Color: Grey
I've been ordering all types of clothing through Amazon and finding size issues quite a bit. These are the first pair of long johns that weren't seriously disproportioned. Size charts are tough, especially when you're dealing with Makers on one side of the planet and Consumers on the other. It's either that, or I am a freak of nature and clothes no longer fit me. Come to think of it, as a 6ft tall, 130 lbs man that's pretty true. The size Small almost doesn't exist anymore, and I have to look for European sizing to get something that really fits me. I don't like baggy clothing, but I did get these a bit bigger than I normally would so I can use them to layer with this winter. We'll see how they help in that regard in a couple months, and I'll stop back to report... ... show more
Reviewed in the United States on October 14, 2023 by Princesa Blanco

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