100% Merino Wool Base Layer Mens Pants - Thermal Underwear Long Johns

Bought these as a Christmas gift. Husband loves them, wore them all winter long and the added pair of socks were a great bonus one of his favorite pairs! Super soft, very warm. Only complaint is they get peely after washing but they are an under layer so it doesn’t matter.

Wore these while ocean fishing in Alaska. Fantastic product. Keep me warm through three days of rainy and cold weather without hindering my movement. Most importantly it has a fly which for some reason many competitors products do not. I am 6’2” tall and weigh 208 lbs and extra large fit well.

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!

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.

These were for hubby, and he liked them! He liked that they weren't really thick, yet still kept him warm. He wore a matching set as a base layer, then hiking or rain pants on top.

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.

These worked GREAT! i used them hunting and they kept me warm. Very happy with this purchase.

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!

Nogood telling the reader how good this is without referencing to others for comparison so here goes :- In the 1970's to 1980's I used long johns bought from high street stores and also Damart (thermal underwear). These may have been satisfactory for warmth but terrible for dealing with sweat. Since 1979 I have been using Helly Hensen (HH) Lifa (not Lifa Merino (not available then) interspersed with Damart. Lifa is great in handling sweating but didn't provide the warmth of Damart. Around 2010 spent two winters using HH Merino (not Lifa Merino). These gave a good compromise in handlign warmth and sweat. But HH Merino disappeared off the market; guess replaced by HH Lifa Merino. These are great and have been using them for the past 10 years. However, the HH pricing has gone strastospheric. Found anohter brand on Amazon offering merino (only, not like Lifa Merino with synthetic). However, these were very thin and thus disappointed. So came towards end of winter 2024/25 decided to continue searching - realised Merino.tech market 3 different thicknesses of merino base layers. Am happy to report that these 320 gsm (grammes per square metre) ones are the thickest pair of long johns I have tried for couple of decades. They are warm. However, don't reckon they deal with sweat as well as HH Lifa Merino - but then you have to consider the price, which is not £80 for the HH Lifa Merino. In summary, if these Merino.tech long johns lasts as long as those from HH, then these deserve 5 stars but it is too soon to tell. (I have had the HH Lifa Merino for 10 years and I also have HH Lifa (not Lifa Merino) for 20 years ..... so it maybe that spending more will mean longer lasting product. Time will tell but early sign is not comforting because the Merino.tech leaflet says hand wash only for their "Lifetime Warranty". Get Real! I won't have time to hand wash ! No, I will wash as per the way I do with the HH brand, 30 degrees on the wool cycle in a washing machine using non-bio detergent.) I am not born yesterday and I am not going to fall for that "Lifetime" nonsense because "Lifetime" means what ever the manufacturer wants it to mean and it's never as long as the customer expects.

Muy cálido genial para días muy fríos en bicicleta

J'ai acheté ce sous-vêtement car j'ai une forte frilosité de façon généralisée, même à la maison. Il est confortable, tient chaud et permet de mieux supporter cette frilosité. Je suis content de mon achat. Une paire de chaussettes était présente. Je ne peux me prononcer, je n'ai pas testé.

Questi pantaloni termici sono una calda carezza sulla pelle. Morbidissimi. In lana merino al cento per cento, si possono usare tranquillamente tutto il giorno perché attivano un calore naturale, piacevole e duraturo. Sono anche certificati oeko-tex il che significa che sono senza sostanze cancerogene o pericolose. In omaggio c'è un paio di calzini in lana merino di ottima fattura dello stesso colore del pantalone che completano questo eccellente intimo da uomo. Ne ho già comprati due. Consigliatissimo.

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.