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The 8 Best wool base layers of 2025

Are you trying to find wool base layers among various brands on the market but aren’t sure where to begin? To assist you in finding the right one, we’ve put together a list of the 7 best to help you pick the perfect one!

We investigated and evaluated a number of the top-selling wool base layers on the market in order to create our list of the best. Making a decision among the many options available is never simple. There are an infinite number of models available, each with a distinct price. And as you’ll find out, the best options aren’t usually the ones you imagine! This comparison is rich and relevant because of the numerous factors that were employed. You will find products featured in this ranking not only based on their pricing but also on their features and other customers reviews. To write this review, we completed 22 hours of research and did 17 wool base layers tests. You won’t need to pick products at random any more. If you’re unsure of what to look for, browse our list and consult the buying guide!

An overview of our top picks

Table of contents

The best wool base layers you can buy today

No. 1
DANISH ENDURANCE Merino Wool Base Layer Shirt for Women, Thermal Long Sleeve, Grey, Small
  • TEMPERATURE CONTROLLED MERINO: Our lightweight base layer top features a premium merino blend that provides breathability, temperature control, and moisture wicking to keep you fresh dry, and warm all day long. Soft, itch-free material, no neck tags and flat seams ensure maximum comfort. Suitable for sensitive skin. Find the matching tights in our brand store
  • IDEAL FOR OUTDOOR & EVERYDAY: Our versatile merino tights are made from an odor-free blend and a great choice for staying nice and comfortable in any weather. Perfect for outdoors, be it for workouts, hiking, skiing or snowboarding. For casual wear, our merino bottoms will also keep you cozy at home. Find the matching shirt in our brand store
  • DESIGNED IN DENMARK: Our Danish Endurance design team develops this regular fit crew neck shirt in Copenhagen, Denmark. This shirt is made from a premium blend of 80% Merino Wool and 20% Polyamide for comfort and durability. The merino wool is sourced in an animal-friendly way without mulesing practices. The line is OEKO-TEX standard 100 certified to ensure it is free from harmful substances
  • RECOMMENDED BY EVEREST CLIMBER AND ELITE ATHETE: Our merino base layer line is developed with mountaineer Rasmus Kragh, the first Dane to climb Mount Everest without the use of supplemental oxygen in May 2019. During his training and excursions, Rasmus is continuously testing our products to ensure the highest standards of performance and material endurance
  • EXCELLENT CUSTOMER SUPPORT: We want our customers to be happy - In case you have any questions or issues, do not hesitate to contact us. Our customer service team is always ready to help you and find the best solution for you
No. 2
MERIWOOL Mens Base Layer - 100% Merino Wool Midweight Long Sleeve Thermal Shirt Black
  • PACKAGE INCLUDES: 1 – Merino Wool Men’s Merino Wool Thermal Crewneck Top in Black / X-Large | MATERIAL: 18.5 Micron, 100% Merino wool, 250g/m2 | FIT: Fitted
  • SUPER SOFT: 100% all natural superfine 18.5-micron Merino wool ensures comfort all day – no itch! EASY CARE: Mid-weight long sleeve crew top shirt is machine-washable and dryer-safe, so it’s ready when you are for your next adventure.
  • BREATHABLE: Keeping you cool in summer and warm in winter, 250g/m2 weight interlock-knit Merino wool can be used as a base layer or mid-layer, but won’t weigh you down. COMFORTABLE & CONVENIENT: Quick-drying shirt features a loop for hang drying while camping, hiking, hunting, working, playing sports, skiing, snowboarding, or partaking in any outdoors activity.
  • WICKING & ODOR RESISTANCE: Merino wool’s natural wicking and odor-resistant properties keep you dry and comfortable while active in cold weather. Through the process of wicking, Merino wool is the most breathable fabric and absorbs moisture better than any other fibers. Wicking refers to a fabric’s ability to pull moisture away from your body and keep you comfortable.
  • EXCEPTIONAL CUSTOMER CARE: If your MERIWOOL Men’s Midweight Base Layer Crew Top doesn’t perform to your satisfaction, return it to us within 30 DAYS along with proof of purchase for a hassle-free refund, exchange, or replacement. Includes a 90 DAY limited manufacturer’s warranty.
No. 3
LAPASA Men's 100% Merino Wool Base Layer Set Lightweight Thermal Underwear Activewear Long John Top Bottom M31 Medium 1. Lightweight Black 1 Set
1,293 Consomer Reviews
LAPASA Men's 100% Merino Wool Base Layer Set Lightweight Thermal Underwear Activewear Long John Top Bottom M31 Medium 1. Lightweight Black 1 Set
  • 100% MERINO WOOL: LAPASA's long john thermal underwear set is made from 100% Merino Wool, providing the ultimate warmth and comfort for cold weather. The Lightweight and Midweight fabric ensures superior insulatio. Also, The merino fibers offer a soft, itch-free experience. It's an ideal base layer for winter activities like hunting, camping, or as cozy pajamas.
  • OPTIMAL INSULATION AND BREATHABILITY: Enjoy the perfect balance of warmth and breathability with LAPASA's Merino wool thermal underwear. The mid-thickness design provides excellent insulation without bulkiness, offering a lightweight and comfortable feel. The breathable fabric wicks away moisture, keeping you dry and cozy during outdoor adventures or everyday wear.
  • UNRESTRICTED MOVEMENT AND VERSATILITY: Our thermal set moves with your body, thanks to the durable 4-way stretch material, ensuring freedom of movement during various activities. It's perfect for hiking, skiing, or any cold-weather pursuits. The snug fit and seamless construction prevent chafing and enhance comfort.
  • NATURAL CONTROL AND COOLING + WARM EFFECT: LAPASA's Merino wool base layers keep you fresh throughout the day. The natural cooling properties of Merino wool make it suitable for any season or climate, allowing you to stay comfortable and cool even in warmer temperatures.
  • LIGHTWEIGHT AND EASY CARE: Our lightweight Merino wool thermal set offers excellent heat retention while being easy to care for. It's machine washable and quick-drying, ensuring hassle-free maintenance. Whether you're heading out for an adventure or lounging at home, this thermal set provides exceptional comfort and performance.
No. 4
Merino Wool Base Layer Mens - 100% Merino Wool Shirts for Men Thermal Underwear Long Sleeve T-Shirt for Hiking Hunting (X-Large, 170 Black)
  • Everyday Shirt: Mens Merino Base Layer is ideal to be worn as a standalone piece or layered for year-round adventures
  • Super Soft & Comfortable: 100% Superfine 17.5 Micron Merino Wool Base Layer Mens provides all day comfort and no itch! Merino undershirt is designed for daily wear without rubbing, overheating, or bunching of regular cotton
  • Moisture Wicking & Odor Resistant: Merino Thermal Top natural wicking properties allow it to absorb moisture better than any other fabric, keeping you dry and fresh
  • Easy Care: Washer safe. For longer lasting wear, hand wash and lay flat to air dry. Merino Wool Undershirt Men naturally regulates body temperature to keep you comfortable all year round
  • Zero Worries: Every Merino Wool Shirt we make is backed by our Merino.tech Promise - ensuring you're 100% happy with every Merino.tech purchase. For best results hand wash and lay flat to dry
SaleNo. 5
Merino Wool Base Layer Mens Bottom Pants 100% Merino Wool Midweight Thermal Underwear Long Johns + Wool Socks (Medium, Black 250)
  • Midweight: Mens Merino Base Layer Available in: Lightweight 165 g/m², Midweight 250 g/m², Heavyweight 320 g/m². Merino Wool Hiking Socks ($21 Value!) - Lightweight Merino Wool Pants for Men 165 g/m² and Wool Socks. Cool Packaging! Makes A Great Gift!
  • Super Soft & Comfortable: 100% Superfine 18.5 Micron Merino Wool Underwear Mens provide all day comfort and no itch! Designed for daily wear without rubbing and overheating of regular cotton.
  • Moisture Wicking & Odor Resistant: Merino Baselayer Men natural wicking and odor-resistant properties allow it to absorb moisture better than any other fabric, keeping you dry and fresh.
  • Easy Care: Washer/dryer safe. For longer lasting wear, hand wash and air dry. Midweight Merino Wool Base Layer Mens naturally regulates body temperature to keep you comfortable all year round.
  • Zero Worries: Every Merino.tech Merino Pants we make is backed by our Merino.tech Promise - ensuring you're 100% happy with every Merino.tech purchase.
SaleNo. 6
Smartwool SW016361001XL Men's Merino 250 Baselayer Bottom Black XL
  • COLD WEATHER BASE LAYER. Keep your ski or hiking boots free of bulk and friction with our 3/4 Bottom. Merino wool provides ultimate comfort, while a newly redesigned base layer pants fit helps reduce sag and excess fabric—perfect for layering.
  • SLIM FIT. Designed to meet the demands of outdoor adventuring, these slim fit bottoms show off a slimming silhouette while offering unrestricted movement through the legs. Inseam: 21.5"
  • CLASSIC THERMAL MERINO. Ideal for cold-weather activities where warmth and breathability are crucial, this midweight fabric used a Merino wool construction that helps move moisture away from skin to keep you warm and dry.
  • FUNCTIONAL FEATURES. Go far, feel good with thoughtful tech to keep you trekking comfortably — interlock knitting enhances breathability, thermoregulation and moisture-wicking while flatlock seams minimize chafing for greater comfort.
  • GO FAR. FEEL GOOD. From wool socks to base layers for men, women and kids, we aim to provide the highest quality apparel for your outdoor adventures with a commitment to environmental sustainability, racial equity and inclusivity.
SaleNo. 7
Merino Protect 100% Merino Wool Base Layer Mens Soft Long Sleeve Shirts Odor Resistance Thermal Underwear for Hunting Hiking
  • Redefining Comfort: Experience the ultimate in comfort with our Merino wool base layer mens made from 100% Australian natural Merino wool. Its ultrafine fiber structure ensures softness and itch-free wear, making it perfect for taking along on your travels or outdoor adventures, occupying minimal space in your backpack and reducing travel weight.
  • Temperature Regulation: With just one piece of our Merino wool undershirt, maintain a comfortable body temperature whether in cold or warm conditions. Ideal for hiking, hunting, and other outdoor activities, it excellently absorbs sweat, releases or retains heat, and reduces energy expenditure, allowing you to enjoy prolonged comfort.
  • Odor Resistance: Benefit from the natural odor-resisting properties of our Merino wool long sleeve shirt men, reducing the need for frequent washing and replacement. Its outstanding moisture-wicking ability keeps you dry and fresh all day, perfect for extended outdoor expeditions.
  • Cold Weather Base Layer: Our Merino wool thermal underwear offers excellent thermal protection, serving as an ideal base layer or mid-layer. It's especially suited for hiking, skiing, or any activity in chilly conditions.
  • Customer Service and Easy Care: Your satisfaction drives everything we do. Register to receive a 6-month warranty. Care Instructions: Gently machine wash in cold water and air dry, avoiding heat and tumble drying.
SaleNo. 8
Merino.tech Merino Wool Base Layer Women - 100% Merino Wool Heavyweight, Midweight, Lite Long Sleeve Thermal Shirt and Socks (Medium, Black 250)
  • Midweight – Womens Merino Base Layer Available in Lightweight 165 g/m², Midweight 250 g/m², Heavyweight 320 g/m². Merino Wool Hiking Socks ($21 Value!); Package includes Women Merino Wool Base Layer Top Midweight 250 g/m² + Wool Socks. Cool Packaging! Makes a Great Gift;
  • Super Soft & Comfortable: 100% Superfine 17.5 Micron Merino Wool Tops for Women provide all day comfort and no itch! Designed for daily wear without rubbing, overheating, or bunching of regular cotton;
  • Moisture Wicking & Odor Resistant: Merino wool base layer women lightweight natural wicking and odor-resistant properties allow it to absorb moisture better than any other fabric, keeping you dry and fresh;
  • Easy Care – Washer safe. For longer lasting wear, hand wash and lay flat to air dry. Lightweight merino wool thermal shirts for women naturally regulate body temperature to keep you comfortable all year round;
  • Zero Worries: Every Merino Wool Hiking Shirt we make is backed by our Merino.tech Promise - ensuring you're 100% happy with every Merino.tech purchase;
No. 9
Stanfield's Men's Standard Two Layer Merino Wool Blend Long Underwear Bottom, Charcoal Mix, Large
  • Two layer construction: Soft inner layer of blended cotton and polyester next to your skin. Outer wool blend layer helps maintain warmth and durability
  • Pull on fly front long johns with ribbed ankle cuffs and plush-lined branded elasticized waistband
  • Strategic seam placement for maximum comfort and reduced chafing
  • Ideal for moderate to very cold weather
  • Wool blend bottoms boast moisture wicking, naturally odor resistant fabrication to keep you warm, dry, and odor free
  • Leg style: Tapered
  • Sport type: Outdoor Lifestyle
No. 10
SmartWool SW015255001S Women's Merino 150 Baselayer Long Sleeve Black S
  • 4 SEASON BASE LAYER. Spring skiing or summer camping? This base layer is designed for both due to the versatility and temperature-regulating properties of our Merino fabric, enhanced with Core Spun technology for increased durability.
  • SLIM FIT. Designed to meet the demands of outdoor adventuring, this slim fit shirt shows off a slimming silhouette while offering unrestricted movement through the arms and chest.
  • CLASSIC ALL-SEASON MERINO. Perfect for 4 season layering and everyday comfort, this ultra lightweight performance fabric blends Core Spun Tech that maximizes durability with the thermoregulation and moisture wicking power of Merino wool.
  • FUNCTIONAL FEATURES. Go far, feel good with thoughtful tech to keep you trekking comfortably — a raglan sleeve design eliminates seams for maximum comfort while stretch merrow stitching elevates comfort, range of motion and fit.
  • GO FAR. FEEL GOOD. From wool socks to base layers for men, women and kids, we aim to provide the highest quality apparel for your outdoor adventures with a commitment to environmental sustainability, racial equity and inclusivity.

How to choose a good wool base layers

Does the idea of finding a fantastic wool base layers make you anxious? When it comes to purchasing this product, specifically when deciding which model to select, has your head been spinning between options? You are not alone if that is the case. We are aware of the pressure involved in the purchasing process!

Your presence here indicates that you are interested in wool base layers. Before choosing which product would be the best for your needs after being inundated with information, locate a reliable source with genuine selections. You can get that information from a variety of sources, including buying guides and rating websites, word-of-mouth recommendations from friends and family, online discussion forums where users can share their own experiences, product reviews that can be found all over the internet, and YouTube channels. You can only get the right product through exhaustive analysis. But you realize that’s not always simple. In order to ease your concerns, we have taken the time to develop a list of the top wool base layers products available right now. You might be wondering how we came up with the list. How was this buying guide developed?

First, we used our algorithms to gather as much reliable data as we could about these products. To verify all the data gathered, we used both artificial intelligence and a lot of algorithms.
Then, our experts used criteria that are recognized in the business to evaluate them according to their quality to price ratio, allowing us to choose the top wool base layers on the market right now!

The selection of the goods is not arbitrary. Before creating a list, we take into account a number of factors. Below are some of the criteria discussed:

Brand Value: What happens if you choose a dubious brand just because it appears to be a good deal? So the likelihood of receiving a product with a short shelf life increases. That is due to the fact that well-known brands have a reputation to uphold, while others do not. Top wool base layers brands strive to provide some distinctive traits that set them apart from the competition. So, hopefully one or more of the items on our list will be perfect for you.

Features: Useful features are all you need, not tons of them. We consider the important aspects and select the top wool base layers based on those.

Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products with higher specifications, but with the right balance.

Quality: A product’s quality may always be quantified with the aid of numbers. We look for goods with better standards that strike the proper balance. The best quality product that gets highly appreciated and recommended by experienced users.

Customer ratings:  Would it be accurate to suggest that the wool base layers were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.

Customer Reviews: Like ratings,  provide you with accurate and reliable information about the product from genuine customers. Customer ratings are very important to all of us because they contain accurate and reliable information about the customer service we received from several hundred customers.

Seller Rank: This is very intriguing! Not only do you need a good wool base layers, you also need a product with rising sales that is trendy. It accomplishes two goals. First, the expanding user base proves the quality of the product. Second, given that number, producers must be able to offer greater quality and after-sales support.

Value: You get what you pay for, they say, so consider the value. Cheap isn’t always good and expensive isn’t always bad. However, that does not imply that spending a lot of money on a product that is flashy but underwhelming is a good idea. Before adding them to the list, we make an effort to evaluate how much value you can get for your money from your wool base layers.

Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting wool base layers for months and years to come.

Product availability: Products come and go, and new ones replace the old ones. Most likely, a few new features and required changes were made. What use is it to use a supposedly good product if the maker no longer supports it? We make an effort to highlight products that are current and offered by one or more trustworthy sellers, if not more.

Negative Reviews: Yes, we do take that into account as well! The goods with the majority of bad reviews are filtered out and disregarded when we choose the best-rated one on the market.

These are the standards by which we selected our wool base layers. Do we end our process there? Hell no. The most crucial fact about us that you should be aware of is that we regularly update our website with current and pertinent information. We have one more layer of filtration since we place the greatest importance on reader satisfaction. Please let us know if any product included here is incorrect, irrelevant, subpar, or simply out of date. We always value your opinions, and we’ll work hard to make any necessary corrections to our list in response to them.

Why should you believe us?

There are now thousands of possibilities for these products on Amazon, but choosing the best one can be difficult and time-consuming. And what wool base layers should you purchase in 2022?

This guide is the result of more than 10 years of experience in researching, testing and writing about many topics. Each member of our team is an authority in their area. We read every article we could find online and every consumer review on every retail website for seven hours. Additionally, we discovered a ton of websites that offered helpful resources, including buying tips and thorough information on wool base layers.