Unisex Wool Thermo Longs Base Layer with Inlay

(29 customer reviews)


Full length bottoms with reinforced knees for durability. Super light and stretchy. Perfect base layer for hunting, expeditions and other cold weather uses. No fly. Unisex sizes: XS – XXXL. Color: black.

Technical specifications:

Merino wool 80% Polyamide 20%
Weight: 150 g
Material Weight: 125 g / m2
Micron: 17.5

SKU: 10150410 Category: Tags: ,
GTIN: 10150410
Brand: Brynje


The Wool Thermo (WT) mesh collection is made with Schoeller® 80% Merino wool and 20% polyester yarn providing excellent warmth when damp and superior odor attenuation. Brynje’s classic 3/8″ open weave design provides 4 to 6 times the insulation value of any solid knit by weight. The mesh design also allows moisture to transport to the outer layers in vapor form thus keeping you dry during periods of high activity.

Brynje’s WT Merino wool blend is very soft against the skin and has greater strength and durability than 100% Merino wool yarns. In addition, Merino wool’s great odor management properties means more uses between washings which protects both the garment and the environment. These garments are a great choice for virtually all conditions and activities.

Additional information





29 reviews for Unisex Wool Thermo Longs Base Layer with Inlay

Based on 29 reviews
  1. Oscar C. (verified owner)

    Was skeptical about this working in the cold weather but it was great, kept me warm dried quickly and did not smell.

  2. Jeff (verified owner)

    Top of the line

  3. Randall H. (verified owner)

    Wore them hunting. Kept me dry and warm. I break a sweat easily and these are the key to stay in the woods longer.

  4. Anonymous (verified owner)

    Very smooth order and delivery process

  5. RODNEY T. (verified owner)

    Best fit and quality base layer for your money period.

  6. Roberto B. (verified owner)

    I’m happy with the product, right size according to chart and measurements, good fit, comfortable, feel warm while Fatbiking, once I stopped sweat felt slightly cold but I was not wet, dried off fairly quickly.
    I did not realize that from the Canadian store sent me to the USA store where I made the purchase, by the time you add the exchange rate and import taxes the total cost surpassed $430 Can. for only two items, making this a prohibited amount of money to pay again. My fault for not paying attention to this, will not happen again. Unless is sold in Canada by Canadian store.

  7. Michael Everhart (verified owner)

    Excellent warmth!

  8. Stefan Martin (verified owner)

    works excellently; I used it for my first milsim west and it was awesome. Didn’t take it off the entire weekend, kept me warm at night and vented the heat during the day

  9. Cairo (verified owner)

    Excellent quality initially well see with time

  10. Caleb B. (verified owner)

    My usual pant size is 28×32 USA sizing. So I ordered the XS which fits me like a glove. However, the netting is stretchy in all directions…Including downward. Which means the knee inlays sag down past the knees and end up around my shins. It’s so annoying that I never bother wearing them. So now I have an expensive pair of leggings that I hate wearing. I suggest they redesign the inlays to be higher up around the quadriceps so they’ll sag down to the knee region. And I also feel this type of base layer is a bit over hyped. An Under Armour compression winter baselayer wont keep me as dry but they keep me dry enough with a little added warmth. The Brynje’s keep me dry but not warm. I’ve also tried the Kora yak wool base layers which I dislike even more. I’ll be sticking with Under Armour for now.

  11. Nancy (verified owner)

    Warm but not hot when it’s not frigid out

  12. Jeff B. (verified owner)

    While out in the field, I was warm and managed moisture well. However, this pant really needs a fly. Because it was the only layer I wore without a fly, I had to open and drop all layers to urinate. Rating would be a 5 otherwise.

  13. Rodney Brubaker (verified owner)

    Just what I needed!!

  14. Joe (verified owner)

    Warmest base layer I’ve ever had

  15. Michael (verified owner)

    I bought these to wear to my new job as a fuel delivery driver for a major truckstop chain. I cannot sit in truck while loading or unloading so wanted to upgrade my cold weather gear. This item did not disappoint. It’s so warm and comfortable. The coldest I’ve worn them in was single digits. I only wear a pair of regular Dickies work pants over them and my legs feel no draft at all. I definitely want to invest in more of Brynje products.

  16. Michael Quinn (verified owner)

    I recently purchased both top and bottom unisex wool themo longs base layers . Fit was spot on (XL for a 240# 6’3” male.). A bit pricey but delivered as promised on performance. I highly recommend the product.

  17. Gabriel G. (verified owner)

    Awesome too

  18. Anonymous (verified owner)

    Hands down the best base layer I’ve ever worn. Made training in the Arctic Circle that much more bearable. Came highly recommended by members of the Telemark Bataljon and FSK. Highly recommend this base layer.

  19. Andrew Bratlie (deere) (verified owner)

    Been in many layers growing up and issued. Minnesota now in the mtns of idaho. These are by far the best base layers ive had on.

  20. Verified Buyer (verified owner)

    Very happy with purchase. Nice and warm. Customer service was friendly and got back to me quickly.

  21. Brenton (verified owner)

  22. Judi (verified owner)

    My husband was delighted with his holiday gift. He has worn them cross-country and backcountry skiing multiple times. Brynje longies work great to keep him warm and dry whether we’re breaking trail uphill or skiing groomers.

  23. Travis Boyle (verified owner)

    These things are absolutely amazing. I’ve never had a pair of long underwear that I could telemark in without getting too hot. These regulate the temps perfectly while building the thermal layer that keeps me warm on the lift or when the temps drop. Worn in 0-deg F temps. Can’t wait to use these for hunting season.

  24. Stephen Henault (verified owner)

  25. Susan (verified owner)

    While researching base layers for our first ever xc ski trip (in Yellowstone NP’s back country), I read about Brynje. I called Brynje USA and was guided to these for my husband. They were perfect for him. Took the plunge and got two pairs so they could be rotated. He was comfortable and warm.

  26. Anonymous (verified owner)

    Very warm for the weight & comfortable to wear. I was good from 40 degrees to 70 with a t-shirt, light jacket & jeans over this as a base layer & was dry as well. It’s a good idea to contact Brynje with your measurements & get their size recommendation.

  27. Justin Klein (verified owner)

    Excellent product, very effective and fast drying. Highly recommended by Norwegian military and civilians.

  28. Christopher Kavanaugh (verified owner)

    These are surprisingly comfortable under heavier woolens that may chafe sensitive wearers. A note to users! Take your time dressing and keep your nails clipped!

  29. RJ (verified owner)

    Amazing product. I called before purchasing very good customer service. Very good experience.

Add a review

Brynje Size Chart

Unisex Shirt Sizing Height Waist Chest
XXS 4ft 9″ – 5ft 25″ – 27″ 32″ – 34″
XS 5ft 1″ – 5ft 3″ 27″ – 29″ 34″ – 39″
SM 5ft 4″ – 5ft 6″ 29″ – 31″ 37″ – 40″
MD 5ft 7″ – 5ft 9″ 32″ – 34″ 40″ – 42″
LG 5ft 10″ – 6ft 35″ – 38″ 42″ – 44″
XL 6ft 1″ – 6ft 3″ 39″ – 42″ 45″ – 48″
XXL 6ft 4″ – 6ft 6″ 43″ – 45″ 48″ – 50″
3XL 6ft 7″ – 6ft 9″ 46″ – 50″ 51″ – 53″
Women’s Shirt Sizing Height Waist Chest
XS 4ft 9″ – 5ft 25″ – 27″ 28″ – 32″
SM 5ft 1″ – 5ft 3″ 27″ – 29″ 33″ – 36″
MD 5ft 4″ – 5ft 6″ 29″ – 31″ 37″ – 39″
LG 5ft 7″ – 5ft 9″ 32″ – 34″ 40″ – 42″
XL 5ft 10″ – 6ft 35″ – 37″ 42″ – 44″
XXL 6ft 1″ – 6ft 3″ 38″ – 40″ 45″ – 48″
Unisex Pants Sizing Height Waist Inseam
XXS 4ft 9″ – 5ft 25″ – 27″ 27″ – 28″
XS 5ft 1″ – 5ft 3″ 27″ – 29″ 29″ – 30″
SM 5ft 4″ – 5ft 6″ 29″ – 31″ 30″ – 31″
MD 5ft 7″ – 5ft 9″ 32″ – 34″ 31″ – 33″
LG 5ft 10″ – 6ft 35″ – 38″ 33″ – 35″
XL 6ft 1″ – 6ft 3″ 39″ – 42″ 35″ – 36″
XXL 6ft 4″ – 6ft 6″ 43″ – 45″ 36″ – 37″
3XL 6ft 7″ – 6ft 9″ 46″ – 50″ 37″ – 38″
Women’s Pants Sizing Height Waist Inseam
XS 4ft 9″ – 5ft 25″ – 27″ 27″ – 28″
SM 5ft 1″ – 5ft 3″ 27″ – 29″ 29″ – 30″
MD 5ft 4″ – 5ft 6″ 29″ – 31″ 30″ – 31″
LG 5ft 7″ – 5ft 9″ 32″ – 34″ 31″ – 33″
XL 5ft 10″ – 6ft 35″ – 37″ 33″ – 35″
XXL 6ft 1″ – 6ft 3″ 38″ – 40″ 36″ – 37″
Hat Sizing Circumference Actual Hat Size
Small/Medium 21 1/8″ – 22 1/4″ 6 3/4 – 7 1/8
Large/Extra-Large 22 5/8″ – 23 7/8″ 7 1/4 – 7 5/8
Glove/Mitten Sizing Circumference of Palm
SM 6.5″ – 7.5″
MD 8″ – 8.5″
LG 9″ – 10″


All sizes are averages and approximate. Your size may vary depending based on your body shape and the model.

Mesh base layers are generally quite stretchy in all directions and are cut long. As the girth increases the length will decrease

Generally the Women’s sizes will be one size smaller than Unisex. I.E. a Unisex SM is equivalent to a Women’s MD.

Laundry Instructions

Wool is a natural fiber which does not to be laundered regularly. A global wardrobe survey in 2015 by AC Nielsen confirmed that wool garments have a longer life than cotton – as much as 50% longer. Merino wool can be worn multiple time between washings which will prolong the garment life and protect the environment. The synthetic fibers like Schoeller® Polycolon can be machine washed and hung to dry.

Hand wash or machine wash on gentle cycle with cool water (not to exceed 85°F).

Line dry. Do not tumble dry.

Do not use bleach.

Do not use fabric softener.

Do not dry clean.

Brynje USA