






🔥 Stay warm, fresh, and unstoppable with Merino.tech 🧶
Crafted from 100% superfine 17.5 micron Merino wool, these midweight (250 g/m²) men's base layer pants deliver superior thermal regulation, moisture-wicking, and odor resistance. Designed for all-season comfort and durability, they come with a complimentary pair of premium Merino wool hiking socks, making them the ultimate choice for professionals who demand performance and style in their activewear.





























| ASIN | B085TG99MH |
| ASIN | B0B8SP5PPG |
| Age Range Description | Adult |
| Apparel Closure Type | Pull On |
| Best Sellers Rank | #9,238 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #7 in Men's Thermal Underwear Bottoms |
| Brand Name | Merino.tech |
| Color | .Black 250 |
| Customer Reviews | 4.6 4.6 out of 5 stars (3,337) |
| Date First Available | June 22, 2021 |
| Department | mens |
| Fabric Type | 100% Superfine Merino Wool |
| Fit Type | Standard |
| Front Pleat Type | Flat Front |
| Item model number | 165 |
| Leg Style | Skinny |
| Material Type | 100% Superfine Merino Wool |
| Model Name | Flats |
| Occasion Type | Hiking |
| Package Dimensions | 10 x 9 x 0.7 inches; 4.8 ounces |
| Pants Form Type | Leggings |
| Pattern | Solid |
| Pattern Style | Solid |
| Pocket Description | No Pocket |
| Product Care Instructions | Machine Wash |
| Rise Style | Mid Rise |
| Seasons | All |
| Style Name | 250gsm Midweight |
| Style Number | MER-M-PNT-BLK-250-XL |
| Team Name | 250gsm Midweight |
| Unit Count | 1 Count |
L**S
Value for the money
These were the best quality I have found. The fit was perfect and they were so soft. A nice touch was the free socks that were included! Great for the winter months in Ohio.
S**E
Nice comfortable product
Perfect fit. Husband is 5'6" 145lbs wearing Small. Soft feel yet light and warm.
R**.
Best long johns I've ever owned !
The Merino Wool Base Layer Mens Bottom Pants are very warm, soft and comfy. I bought the Heavyweight, 320g bottoms, and I was worried about them being too thick, they're not that thick at all, they are perfect, very, very comfortable and warm. I was golfing with them in 40 degree weather with 12 mph wind and my legs were not cold at all, plus they were not too warm either, actually just right. I didn't where anything but a t-shirt, polo shirt, and light wind proof Foot Joy golf jacket on top, but my chest and arms were not as comfy warm, as my legs were, even though I was wearing thin golf pants over the Merino bottoms. I live in a cold, northern, climate and have bought many, many, different types of "long Johns" and these are by far the best I've ever bought. When it comes to bottom layer long johns, I think they should be snug, but not too tight, I have a 33 inch waist and a 32 inch inseam and their medium size fit me perfect!
S**F
Happy customer.
I've been wearing this merino wool Base Layer and it's been awesome—especially when that unexpected snowstorm hit. The 100% superfine 17.5-micron merino wool is super soft, never itchy, and doesn’t feel heavy or bulky, even after a full day out. The warmth is impressive, and I love how the wool's moisture-wicking keeps me dry and comfy no matter the conditions. The fit is just right, with no bunching or overheating, which is a big upgrade from regular cotton. The packaging was actually pretty cool, and the included merino hiking socks are a nice extra. My feet was dry by the end of the day. My only hesitation is about the care instructions—it says to hand wash and lay flat, but I’m tempted to try the washer to see how it does. I liked my Smartwool before because you could just toss it in the washer, but that was only 81% wool. Overall, I'm really happy with this one! I bought 2 more.
B**R
Great Healthy Underpants!
I bought size small of these...they fit just right really...not real tight, but I don't need them that tight, they're tight enough and feel great...they actually remind me of nylons and make me feel like I am some sexy lady but they are made of a much healthier material and do keep my legs plenty warm in this cold weather we've been having, itleast when I wear them underneath my jeans or pants and do not make my legs sweat when I am in my house at all, although my house isn't very warm...
J**C
Wool isn’t scratchy anymore
Super comfy and super warm. These are the best thermal underwear I’ve ever purchased. I’ve worked outside most of my life and these were life savers..They are breathable and extremely comfortable and lightweight.I have the tops as well and are awesome as well.The initial sticker shock is worth it. Sometimes ya need buy quality,,and this is one of them..
D**N
Good quality
The pants are great! Very comfortable and keep you warm. I bought a pair for my dad as well who’s in colder temperatures and he loves them as well.
W**L
Truly amazing product
Best leggings ever!! Super soft. Durable, keeps you super warm without overheating. Fits well, I've been wearing it for a few years already and came back to write this review that's how much I like it. Super worth!
M**.
Matière très agréable, chaude, confortable. C'est une laine très fine et délicate. Je l'utilise surtout comme pyjama, occasionnellement comme sous-vêtement. Se lave sous programme laine délicat à 30°C et petite dose lessive extra-douce (Mir Laine) (j'utilise un filet). Essorage à petite vitesse (600t/min) pendant une dizaine de minutes. Suspendre pendant 30 à 40 minutes et il est prêt à lemploi. Attention : pas de séchage à chaud ! Toujours impeccable après une vingtaine de lavages
T**Z
Good mid-weight leggings/base layer, I have a number of these type but these are much thicker and warmer, well made and high waist so they stay up
R**L
Muy cálido genial para días muy fríos en bicicleta
B**O
sono alto 1,80 -- mai acquistato di questi articoli quindi non so dire del prezzo -- prodotto ottimo : calza benissimo tg 3xl , morbido , caldo , scorrevole quando infilo , il taglio per urinare è sufficientemente largo per evitare di abbassare il pantalone
S**.
Ich habe die Merino‑Baselayer Hose (Herren) über mehrere Abende auf verschiedenen Weihnachtsmärkten getragen – bei Wind, Nieselregen und Temperaturen knapp über 0 °C. Mein Eindruck: angenehm warm, spürbar trocken und kein Kratzen. Genau das, was man sich unter Jeans oder Thermohose wünscht, wenn man stundenlang draußen steht. Praxiseindruck (real getestet) Wärmeleistung: Hält die Beine konstant warm, auch im Stand – perfekt für Glühwein‑Schlangen und bummelnde Runden. Feuchtigkeitsmanagement: Unter der Winterjacke wird’s schnell warm; an den Beinen blieb es trocken. Schweiß wurde gut abtransportiert, ohne feuchtes Kältegefühl. Tragegefühl: Weich, elastisch und kein Jucken. Sitzt körpernah, ohne einzuengen – unter Jeans unauffällig. Geruch: Nach mehreren Stunden draußen neutral geblieben; ideal für mehrtägige Märkte oder Reisen. Pflege: Nach der Wäsche Form stabil, kein Verziehen; Trocknet vergleichsweise schnell. Verarbeitung & Passform Elastischer Bund und flache Nähte – bequem, kein Scheuern. Länge fällt leicht sportlich aus (bei mir bis knapp über den Knöchel) und passt gut in Stiefel oder hohe Sneaker. Stoff fühlt sich dichter an als klassische Funktionswäsche, bleibt aber beweglich – gut für längere Wege zwischen Buden. Für wen passt das? Pendler & Marktgänger, die viel stehen und frieren vermeiden wollen. Reisende oder Festival‑Besucher, die geruchsarme und schnell trocknende Unterzieher bevorzugen. Kleiner Hinweis (authentisch) Wenn du zwischen zwei Größen liegst, eher die größere wählen – der sportliche Schnitt sitzt körpernah. Für extrem windige Tage empfehle ich zusätzlich eine Windtight oder eine gefütterte Außenhose. Warum ich die Merino‑Baselayer Hose empfehle: Warm & atmungsaktiv für kalte Outdoor‑Events Weich & kratzfrei – angenehmes Hautgefühl über Stunden Geruchsarm, ideal für mehrtägige Nutzung Unter Jeans kaum sichtbar, alltagstauglich Pflegeleicht & formstabil nach der Wäsche Fazit: Für lange Abende auf dem Weihnachtsmarkt und kalte Outdoor‑Tage ist diese Merino‑Baselayer Hose eine sehr überzeugende Wahl. Sie kombiniert Wärme, Komfort und Alltagspraktikabilität – genau das, was man in der Winterzeit braucht.
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