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🐑 Stay warm, move free, and own the cold in style!
The LAPASA Men’s 100% Merino Wool Thermal Shirt is a lightweight to midweight base layer designed for superior insulation and breathability. Crafted from premium Merino wool, it offers natural softness, moisture-wicking, and temperature regulation. Its 4-way stretch and seamless construction provide unrestricted movement and comfort, making it ideal for outdoor activities like hunting, skiing, or everyday wear. Easy to care for and durable, this thermal top balances warmth and cooling for year-round use.







































| ASIN | B075887GG1 |
| ASIN | B0CZ8Z69MT |
| Age Range Description | Adult |
| Apparel Closure Type | Pull On |
| Apparel Fabric Stretch | High Stretch |
| Apparel Fabric Weight Class | Lightweight |
| Back Style | T Back |
| Best Sellers Rank | #142,842 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #73 in Men's Base Layers #937 in Men's Snowboarding Clothing #5,662 in Men's Shops |
| Brand Name | LAPASA |
| Color | Top: Black-lightweight |
| Customer Reviews | 4.4 4.4 out of 5 stars (952) |
| Date First Available | August 4, 2023 |
| Department | mens |
| Embellishment Feature | Lightweight |
| Fabric Stretchability | Stretchable |
| Fabric Type | 100% Merino Wool |
| Fit Type | Regular Fit |
| Fit to Size Sentiment | Neutral |
| Hemline Form | Straight Hemline |
| Import Designation | Imported |
| Item Length Description | Standard Length |
| Manufacturer Part Number | LPM17AW00290BLK0XLR1 |
| Material Type | Wool |
| Model Name | 100% Merino Wool Thermal Underwear Top Crew Neck Base Layer Long Sleeve Undershirt |
| Neck Style | Crew Neck |
| Occasion Type | Birthday, Christmas, Father's Day, Valentine's Day |
| Pattern | Solid |
| Product Care Instructions | Machine Wash |
| Seasons | Winter |
| Shirt Form Type | T-Shirt |
| Sleeve Length Description | Long Sleeve |
| Sleeve Type | Long Sleeve |
| Sport Type | Alpine Skiing, Snowboarding |
| Style Name | 100% Merino Wool Thermal Underwear Top Crew Neck Base Layer Long Sleeve Undershirt |
| Style Number | M29 |
| Team Name | Thermoflux 100 Lightweight |
| Unit Count | 1 Count |
| character | sports |
| collar-type | Crew Neck |
L**Y
Awesome
Excellent fit and warmth. Feels soft and comfortable,
G**.
Great Shirt
I purchased this shirt because I've had good luck with their products in the past, and the trend continued. Pictures attached for reference. I am 6'1" 185lbs and I purchased a medium. The sizing and fit were as expected. The sleeve length reached my wrists, and the shirt length went about 2 or 3 inches past my belt line. The shirt isn't super tight like a compression shirt, but you aren't swimming in it either. The fabric is VERY soft to the touch, and feels great against the skin. It has some give/stretch to it, but will maintain it's form. The collar fits nice, not too tight against the neck. I found the shirt to be nice and warm, and wear it around the house instead of a light sweatshirt. I'd highly recommend for anyone looking for a long sleeve top.
D**Y
A great shirt!
It kept my body warm while I slept outside in 20 degree weather. Of course, I did also have a sweater on, but I survived a really cold night in which my body was covered in frost. So I would definitely consider this a great quality shirt.
J**E
Good price and quality
Comfortable, warm, sizes a bit large, loose. Price was right, on sale. Nice light weight knit.
M**U
I use them when hunting
Nice wool for hunting, warm and soft.
D**L
I highly recommend this one
Very comfortable and warm. Sizing came as expected.
A**T
Droped in quality
I've product twice. Second time one year later it appears much thinner less quality.
L**E
Size down!
I got this in the size amazon recommended and it's almost two sizes to big. not good when meant to be a layering under shirt. Definitely go 1 down from regular if you want this to fit proper. Also a bit itchy which normally merino wool isn't. Still kept me warm though.
A**R
Last winter I was wearing cotton t-shirts and often was feeling cold. This winter I wanted to change that and bought the shirt to see whether I would be warm and comfortable. I bought size L and have been wearing the shirt twice. The fitting is good and you almost do not feel that you are wearing it and most important I was not cold. I have not compared it with other brands, but I can recommend it. The only thing I would change is to remove the laundry label and print it instead.
A**I
Das langarmige Unterhemd erfüllt genau meine Erwartungen hinsichtlich Paßform und Isolierwirkung, bei gleichzeitiger Ableitung des entstehenden Schweißes. Keine Geruchsbelästigung, auch nicht nach 2 Tagen tragen!!
C**S
A lot of my work is carried out outside, so clothing needs to be functional, I’ve all ready got 2 base layers of this type and can highly recommend them for any outdoor activity, work or play.. very quick delivery,, well happy
L**I
maglia leggera, soffice e calda.
F**A
Ho acquistato un paio di queste magliette intime in lana merino per mio marito, perché io ne posseggo già diverse, e ne è rimasto pienamente soddisfatto anche lui. Consiglio di prendere una taglia più piccola di quella che si porta usualmente perché per fare la loro funzione, tenere caldo, è bene che stiano aderenti
Trustpilot
5 days ago
2 months ago