When the cold months come rolling in, finding the best long underwear is crucial for staying warm and comfortable. The best long underwear can make a world of difference in how you enjoy the outdoors, winter sports, or simply relaxing at home. In 2024, we’ve compiled an extensive list of the top long underwear products available on Amazon, focusing on quality, warmth, breathability, and comfort. If you’re in the market for the best long underwear options, this guide will definitely help you make an informed decision.
| # | Preview | Product | Rating | Price | |
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Thermajohn Long Johns Thermal Underwear for Men Fleece Lined Base Layer Set for Cold Weather (Large,... | $27.99 | Buy on Amazon | |
| 2 |
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WEERTI Thermal Underwear for Men Long Johns with Fleece Lined, Base Layer Men Cold Weather Top... | $19.99 | Buy on Amazon | |
| 3 |
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CL convallaria Thermal Underwear for Men, Long Johns Winter Hunting Gear Sport Base Layer Top and... | $24.99 | Buy on Amazon | |
| 4 |
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Thermajohn Long Johns for Men, Thermal Underwear for Men Long Underwear Mens Leggings Thermal Pants... | $18.99 | Buy on Amazon | |
| 5 |
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Cuddl Duds Womens Thermal Underwear - Heavyweight Base Layer 2-Piece Set - Cozy Moisture-Wicking... | $29.99 | Buy on Amazon | |
| 6 |
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WEERTI Thermal Underwear for Women Long Johns with Fleece Lined, Base Layer Women Cold Weather Top... | $19.99 | Buy on Amazon | |
| 7 |
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adidas Men's Performance Long Boxer Brief Underwear (3-Pack), Scarlet Red/Black/Onix Grey, Medium | $24.27 | Buy on Amazon | |
| 8 |
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Fruit of the Loom mens Coolzone (Assorted Colors) Boxer Briefs, Long Leg - 7 Pack Assorted Colors,... | $20.80 | Buy on Amazon | |
| 9 |
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Fruit of the Loom Men's Recycled Premium Waffle Thermal Underwear Long Johns Bottom (1, 2, 3, and 4... | $18.99 | Buy on Amazon | |
| 10 |
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32° Degrees Men's Lightweight Baselayer Legging | Form Fitting | 4-Way Stretch | Thermal, Black,... | $18.84 | Buy on Amazon |
Contents
- Top 10 Best Long Underwear on Amazon in 2024
- 1. MERIWOOL Merino Wool Base Layer Bottoms
- 2. Duofold Men’s Mid Weight Wicking Thermal Pants
- 3. ColdPruf Men’s Classic Dual Layer Long Underwear Bottoms
- 4. Smartwool Merino 250 Base Layer Bottoms
- 5. Reima Kids’ Long Underwear Pants
- 6. 32 DEGREES Men’s Cool Long Underwear Base Layer
- 7. Under Armour Men’s Base 4.0 Leggings
- 8. Terramar Men’s Thermasilk Pant
- 9. Champion Powerblend Fleece Joggers
- 10. Patagonia Capilene Midweight Bottoms
- Buying Guide for the Best Long Underwear
Top 10 Best Long Underwear on Amazon in 2024
1. MERIWOOL Merino Wool Base Layer Bottoms
The MERIWOOL Merino Wool Base Layer Bottoms stand at the forefront of comfort and functionality. Made with 100% Merino wool, these bottoms offer remarkable insulation while remaining breathable. They wick moisture away from the skin, ensuring you stay dry and warm, even under strenuous conditions. Suitable for various activities such as skiing or hiking, these bottoms are antimicrobial and odor-resistant, perfect for extended wear. In 2024, many users rave about the durability of these long underwear, making them a reliable choice for any outdoor enthusiast.
- PACKAGE INCLUDES: 1 – Men’s Merino Wool Thermal Leggings in Black / Large | MATERIAL: 18.5 Micron, 100% Merino wool, 250g/m2 | FIT: Next-to-Skin
- SUPER SOFT: 100% all natural superfine 18.5-micron Merino wool ensures comfort all day long – no itch! EASY CARE: Your thermal pants are machine-washable on cold setting and safe to tumble dry on low heat with like colors, so it’s ready when you are for your next adventure.
- BREATHABLE: Keeping you cool in summer and warm in winter, MERIWOOL’s 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 pants feature a loop for hang drying while camping, hiking, hunting, working, playing sports, skiing, 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 Base Layer Bottoms do not 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, which covers manufacturing and material defects.
2. Duofold Men’s Mid Weight Wicking Thermal Pants
The Duofold Men’s Mid Weight Wicking Thermal Pants combine practicality with a lightweight design. These thermal pants utilize a blend of cotton and polyester that provides both warmth and comfort. Ideal for layering, they feature a moisture-wicking technology that helps regulate body temperature. Users appreciate the soft brushed interior that maximizes comfort. Whether you’re enjoying a winter hike or lounging at home, this product has received accolades for its value and quality.
- Classic 2-ply cotton-rich thermal underwear
- Choose these base-layer bottoms for everyday warmth during low activity levels
- C Vapor technology wicks sweat away from skin for drier, cooler comfort
3. ColdPruf Men’s Classic Dual Layer Long Underwear Bottoms
ColdPruf’s Men’s Classic Dual Layer Long Underwear Bottoms are designed with innovative dual-layer construction, providing excellent insulation in extreme cold weather. The inner layer is crafted from soft and comfortable polyester while the outer layer consists of a blend designed to trap warmth. Customers appreciate how these bottoms maintain breathability, which is critical for staying comfortable during rigorous activities. Their non-restrictive fit is another plus point.
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4. Smartwool Merino 250 Base Layer Bottoms
Offering exceptional warmth, the Smartwool Merino 250 Base Layer Bottoms are made from extra-soft Merino wool. They are perfect for layering, offering a snug fit while remaining incredibly soft against your skin. Their moisture-wicking properties help keep you dry, even during sweat-inducing activities. Customers have praised these bottoms for their durability and stylish fit. They are a favorite among outdoor enthusiasts and are celebrated for their timeliness as the ultimate cold-weather companion.
- Function: Lock in body heat with these leggings from Smartwool for your next outing. A perfect layer, these bottom pants prepare you for what is ahead and what’s next when you head out for camping, running, hiking, or backpacking mountains.
- Fabric: Gear up for your next adventure with these bottoms. Manufactured from 100% Merino wool fabric with an interlock knit, they offer breathable warmth, move sweat away from the body, and provide next-to-skin comfort in colder conditions.
- Benefit: Designed with flatlock seam construction, these leggings minimize chafing, ensuring a lasting use. Extremely durable and stretchable, these leggings provide ultimate comfort all day long.
- Fit Detail: These pants with an updated fit improve functionality while enhancing aesthetics for a range of body shapes. They are designed in a slim fit and feature a Merino-covered elastic waistband for easy wrapping around the waist, leaving no marks.
- Brand Promise: Smartwool brings comfort, confidence, and community to a life lived outside with the benefits of Merino Wool. From socks to apparel, Smartwool products deliver high performance to stay comfortable during all your outdoor adventures.
5. Reima Kids’ Long Underwear Pants
When looking for the best long underwear for kids, the Reima Kids’ Long Underwear Pants deliver outstanding performance. Made with breathable and quick-drying materials, these bottoms ensure kids can stay active while remaining warm. The soft texture is gentle against the skin, making them ideal for little ones. Available in a variety of colors and sizes, parents appreciate both the style and affordability of this product. In 2024, they are considered a top choice for children’s outdoor play.
- 19 MICRON ULTRA SOFT AUSTRALIAN MERINO WOOL: Made from 100% natural merino wool, this base layer pant is incredibly soft and comfortable to wear, even for extended periods of time.
- ENHANCED WELL-BEING at OPTIMAL BODY TEMPERATURE: Experience better sleep quality, improve blood circulation, and find relief from discomfort. Merino wool base layers maintain a consistent and comfortable body temperature in both hot and cold weather, making them one of the healthiest base layer fabric choices. It's an investment in your kid’s well-being!
- LIGHTWEIGHT at 185g/m² and BREATHABLE UNDERWEAR: This kid’s merino wool base layer set is made from lightweight material, making it ideal for cold weather or for use as a base layer under other clothing without adding bulk.
- MOISTURE-WICKING, FIRE, AND ODOR-RESISTANT: Merino wool's natural properties include moisture-wicking, fire resistance, and odor resistance, making it an excellent choice for kid’s base layers during active or outdoor activities as a thermal underwear.
- IDEAL FOR INDOOR AND OUTDOOR ACTIVITIES: These 100% merino wool base layers are thin, lightweight, and breathable, making them perfect for a wide range of activities, including skiing, hiking, snowboarding, camping, and more. They serve as excellent thermal underwear, keeping your kids warm and cozy during winter outdoor activities.
6. 32 DEGREES Men’s Cool Long Underwear Base Layer
The 32 DEGREES Men’s Cool Long Underwear Base Layer is an excellent choice for those who are looking for a blend of comfort and cooling technology. Designed for moderately warm temperatures, this base layer is lightweight and perfect for active wear. Its moisture-wicking fabric keeps you dry during exercise, while the soft stretch allows for unrestricted movement. Reviewers love the versatility of these low-profile pants, making them suitable for gym sessions or ensuring comfort while lounging at home.
- FEATURES: Moisture wicking, Anti Static, Anti Odor, 4 Way Stretch, Tag Free Label, Functional Fly, Elastic Waistband
- FABRIC: 40% Polyester, 34% Acrylic, 22% Rayon, 4% Spandex. Lightweight knit with a lot of stretch. The acrylic blend adds additional lightweight warmth that is comfortable against the body.
- FITTED: Please refer to photo size chart for waist, hips, and length measurements. Meant to be fitted to accomdate wearing under clothes.
- COLD WEATHER: Lightweight warmth, can be worn invisibly as first layer underneath any other clothing.
- WASH CARE: Wash Cold Gentle Cycle with Like Colors, Tumble Dry Low, Non-Chlorine Bleach Only, Do Not Dry Clean, Iron Cool (if needed)
7. Under Armour Men’s Base 4.0 Leggings
For extreme performance, the Under Armour Men’s Base 4.0 Leggings are a game-changer. This product features a thick thermal grid fabric that traps heat while allowing airflow. The four-way stretch ensures maximum mobility, which is crucial during physical activities. Customers report that these leggings provide superior warmth even in harsh conditions. The anti-odor technology is also a significant advantage, making them perfect for prolonged outdoor use. They exemplify a blend of high-quality materials and thoughtful design.
- UA Base 4.0 Extreme Baselayer is our warmest yet, delivering extreme warmth in the extreme cold|UA Scent Control Technology to keep you undetected in all pursuits|Soft, brushed grid interior traps air, managing your body's microclimate to keep you warm & comfortable|Material wicks sweat & dries really fast|4-way stretch construction moves better in every direction|Performance elastic waistband
8. Terramar Men’s Thermasilk Pant
Terramar’s Men’s Thermasilk Pant is another favorite among outdoor adventurers. Made from 100% silk, this long underwear can serve as both a warm layer and a lightweight option. The fine fabric is breathable and moisture-wicking, making it ideal for all-day wear. Customers appreciate the comfort of these silk bottoms; they’re particularly favored for colder climates. These pants are great for layering under your regular clothing while keeping you cozy.
- 🧺 Premium Silk Material : Experience the luxurious comfort of Terramar's Silk Baselayer Bottom Pants, perfect for keeping you warm and computable.
- 🔥 Ultimate Warmth : Designed as the perfect men's thermal underwear bottoms for cold weather. Ideal for skiing, these men's skiing pants are your go-to base layer for extreme cold conditions.
- 🌬️ Breathable Comfort: Engineered for optimal air circulation, these thermal pants keep you dry and comfortable. Say goodbye to stuffiness and hello to your new favorite breathable base layer.
- 🤸♂️ Comfortable & Mobile: Snug yet stretchable, these men's base layer cold weather pants offer maximum mobility. Perfect for skiing, running, or any winter activity that requires movement.
- 🛠️ Durable & Long-Lasting: Made with high-quality materials, these thermal underwear for men pants are built to last. A valuable addition to your cold weather under layer collection.
9. Champion Powerblend Fleece Joggers
If you are looking for something cozy to wear at home, the Champion Powerblend Fleece Joggers offer both comfort and style. With a soft fleece lining, these joggers can also serve as great long underwear during colder months. The elastic waistband ensures a comfortable fit, and the jogger style lends itself perfectly for lounging or casual outings. Customers love how warm these joggers are, making them a top pick for winter comfort.
- THE FIT - Standard-fit men's joggers have a 31” inseam. Elastic waistband with an adjustable drawcord ensures a fit that feels good.
- THE FEEL - Made with a midweight, 9 oz. fleece that’s brushed on the interior for comfort.
- THE LOOK - Classic men's jogger silhouette gets you from workout to weekend with versatility. Side pockets keep essentials close.
- LOW PILL, LOW SHRINK - High-quality fleece fabrication designed to reduce pilling and shrinkage.
- SPOT THE C - Iconic C logo hits at the hip of these men's sweatpants.
10. Patagonia Capilene Midweight Bottoms
Patagonia’s Capilene Midweight Bottoms are another excellent option for layering underneath your clothes. Made from a blend of recycled polyester and spandex, they provide warmth without adding bulk. Known for their moisture-wicking capabilities, these bottoms keep you dry and comfortable in various conditions. Many users appreciate the eco-friendly material choice, and the durability of the product makes it an investment for years of outdoor activities. Patagonia’s commitment to sustainability also appeals to environmentally-conscious consumers.
- Waffle knit traps heat, fast dry wicks away sweat and fights odor
- Rugged flex technology for ease of movement
- Smooth flatlock seams and tagless label enhance comfort
- Concealed dry low-stitch waistband and contoured front for comfort
- Strategic seam placement for maximum comfort and reduced chafing
Buying Guide for the Best Long Underwear
Material
When looking for the best long underwear, the material is a critical factor. The most common materials include Merino wool, polyester, and silk. Merino wool is excellent for insulation and moisture-wicking, while polyester is lightweight and quick-drying. Silk is soft and comfortable but may offer less insulation than other materials.
Fit and Comfort
The fit of long underwear can vary from tight to loose. For layering, a snug fit is preferable, while a looser fit can be ideal for lounging. Make sure to consider your activities when choosing the right fit. Comfort also includes seams and tags; flatlock seams and tagless designs can greatly enhance overall comfort.
Warmth and Breathability
Long underwear should strike a balance between warmth and breathability. High-quality long underwear should provide insulation without causing overheating during physical activities. Look for moisture-wicking capabilities to keep sweat away from the skin.
Price and Value
While it’s essential to find value for your dollar, keep in mind that cheaper options may not provide the performance and durability needed for colder climates or rigorous activities. Investing in a high-quality product can save you money in the long run by avoiding frequent replacements.
Care and Maintenance
Finally, consider the care instructions for the long underwear. Some materials require special washing instructions to maintain their integrity. Look for products that are machine washable for convenience.
Choosing the best long underwear doesn’t have to be a difficult task. With our top 10 recommendations and a comprehensive buying guide, you can make an informed decision to stay cozy and warm during the chilly months ahead. In 2024, elevate your winter wardrobe with the right long underwear that suits your lifestyle and activities!
Last update on 2024-09-20 / Affiliate links / Images from Amazon Product Advertising API | votechriscarrillo.com is a participant in the Amazon Associate program and will earn from qualifying purchases.