Awesome
Bought these for my son and man he said he was realy warm even on an extremely cold day. Fit was tiny but big even in the smallest size but fine cause he can use for multiple years. Incredibly soft and feels great to wear! Read more

Merino.tech
In Stock
Easy Returns · Return eligibility shown before checkout
| department | boys |
|---|---|
| date_first_available | July 25, 2024 |
| manufacturer | Merino.tech |
| best_sellers_rank | #79,518 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #18 in Boys' Thermal Underwear Sets |












Product video 1
Customers say
Customers find the base layer set soft, warm, and comfortable, with long arms and legs that fit well.
Bought these for my son and man he said he was realy warm even on an extremely cold day. Fit was tiny but big even in the smallest size but fine cause he can use for multiple years. Incredibly soft and feels great to wear! Read more
Excellent mid-weight merino base layer for kids. Stretchy and the arms and legs are long! My kiddo has trouble with the arms and legs of base layers being too short, but these are excellent and very soft! Read more
The price for this set was so much better than any other wool set and it’s wonderful! It’s very comfortable and warm. I bought the smallest size for my 3year old and it’s a little long but still fits him just fine. Wool is usually tight anyways but I had to go up a size for my 6 year old, the size recommended was way too tight on him. Read more
They are quite comfortable and doesn’t itch. The quality of the fabric is better than expected since it wasn’t itchy so it’s a must have for staying warm. They fit a bit bigger but it’s fine since the lil ones will grow into them. Read more
True to size my daughter loves them she says they are warm and soft and wants to wear them everyday Read more
I realize that some people pass these up because of the price. I also realize I could buy regular cotton thermals for a lot less money but nothing beats a good pair of thermals. When I take my kid hunting and ice fishing I want him to stay as warm as possible without sweating. Nothing is worse then hiking to a hunting spot and sitting down and getting cold because my kid or myself broke a sweat on the hike out because we had to many base layers on or base layers that were all wrong. I learned very fast that merino wool socks keep my feet dry and warm and the merino thermal underlayment was just as good and if I didn't cheap out and buy a mixed material I would find these things just as good for my son. He is 8 years old and these things are the best! We have went ice fishing and he never complained about being cold. We sat on an all day deer hunt and he didn't complain once about being cold. The material is lightweight but keeps him warm and dry. They fit him perfectly. I am very happy with the purchase! Read more
Fits perfectly for my kid. I bought two sets to layer. Read more
Upon opening the package, I was shocked to see that the thickness of these baselayers was comparable to that of the sheer curtains hanging in my living room. The description says these are 250gsm, but there is absolutely no way in the entire world these were 250gsm. I have never seen a piece of clothing this thin, especially wool base layers. It looks like decorative spider webbing people use to decorate with around Halloween, not a piece of clothing. Immediately put back into the bag and returned. I am amazed with how poor the quality of these “wool base layers” are. Read more
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