Duofold Long Underwear
Experience the perfect blend of tradition and innovation with Duofold’s premium long thermal underwear. Our advanced two-layer fabric technology keeps you warm without the bulk.
Amazon-Backed Security
Shop with confidence using trusted Amazon payment methods
Hassle-Free Returns
Amazon’s 30-day return policy for easy peace of mind
24/7 Support
Access Amazon’s customer service anytime you need help
Prime-Eligible Shipping
Free delivery for Prime members on qualifying orders
Duofold’s Top-Rated Thermal Underwear
Duofold makes high-quality thermal underwear for cold weather. Our products, including our popular men’s Duofold long underwear, range from light base layers to warm, heavy-duty options. We use good materials that keep you dry and comfortable, no matter how cold it gets. Our thermals work well for everyday wear or outdoor activities. They’re designed to fit well, move with you, and not cause itching. Whether you need warm shirts or Duofold long underwear pants, we have options that will keep you cozy without being too bulky. Many customers trust our underwear to perform well in cold conditions.
Discover our collection of Duofold thermals, featuring long sleeve designs perfect for mens active lifestyles. Our warm and comfortable base layers have earned thousands of 5-star reviews, and with free shipping on all orders, there’s never been a better time to experience the Duofold difference.
Duofold Men’s Mid Weight Wicking Thermal Pant
Conquer the cold with Duofold’s Mid Weight Thermal Pant. This base layer combines cotton comfort with polyester performance, featuring moisture-wicking technology and flatlock seams. Stay dry and cozy during any winter.
Duofold Men’s Mid-Weight Wicking Crew Neck Top
Experience ultimate warmth with Duofold’s Mid-Weight Crew Neck. Its dual-layer design traps heat while wicking moisture. Featuring a tag-free neck and flat-locked seams, it’s perfect solo or as a base layer.
Men’s Heavyweight Double-Layer Thermal Shirt
Brave the elements in Duofold’s Heavyweight Thermal Shirt. With 4-way stretch and odor-resistant fabric, it offers superior comfort and performance. The drop tail design keeps you covered during intense cold-weather activities.
Duofold Men’s Midweight Double-Layer Thermal Pant
Duofold’s Midweight Thermal Pant combines cotton, merino wool, and nylon for exceptional warmth and comfort. Featuring flatlock seams and a tagless design, it’s your go-to for cold-weather layering.
Men’s Heavy Weight Double-Layer Thermal Pant
Stay warm and flexible with Duofold’s Heavy Weight Thermal Pant. Its 4-way stretch fabric ensures a snug fit, while odor-resistant technology keeps you fresh. Customizable drawcord for the perfect fit.
Duofold Men’s Mid-Weight Varitherm Thermal Pant
Duofold’s Mid-Weight Varitherm Pant offers versatile warmth for changing conditions. Made with polyester-spandex blend, it provides comfort and flexibility. Drawstring waist ensures a secure fit during any activity.
Mid Weight Fleece Lined Thermal Shirt
Experience superior warmth with Duofold’s Fleece Lined Thermal Shirt. Quick-drying vapor technology keeps you dry, while brushed fabric retains heat. Stretch material and thumbholes provide ultimate comfort and coverage.
Lightweight Thermatrix Performance Thermal Shirt
Duofold’s Lightweight Thermatrix Shirt offers exceptional performance. With quick-dry technology and superior moisture management, it keeps you comfortable. Stretch fabric and thumb holes provide unrestricted movement and extra warmth
Duofold Men’s Thermamatrix Crew
Duofold’s Thermamatrix Crew excels in cold weather. Its double-layer design provides optimal warmth, while moisture control keeps you dry. Ideal for low-impact activities, with flat lock seams for irritation-free comfort.
Duofold Women’s Heavyweight Double-Layer Thermal Shirt
Stay cozy in style with this heavyweight thermal shirt. Made with polyester-spandex blend, it offers superior warmth and flexibility. Features a flattering contoured hemline and comfortable tagless design for all-day wear.
Duofold Women’s Mid Weight Wicking Thermal Shirt
Perfect blend of comfort and elegance with this mid-weight thermal shirt. Cotton-polyester fabric wicks moisture while feminine pointelle details add style. Ideal for everyday winter wear or light outdoor activities.
Duofold Women’s Mid Weight Wicking Thermal Legging
Experience comfort and style with these thermal leggings. Double-layer construction provides reliable warmth, while pointelle details add feminine touch. Moisture-wicking fabric and flatlock seams ensure comfortable, irritation-free movement.
Discover Your Perfect Layer of Warmth with Duofold Thermal Underwear Best Picks
From frosty mornings to winter adventures, Duofold’s premium thermal underwear for men offers unbeatable warmth without bulk. Our innovative fabrics and timeless designs provide the ideal base layer for every cold-weather activity. Don’t let the chill hold you back – explore our full range on Amazon and experience the Duofold difference where comfort meets performance. Discover our extensive selection of Duofold heavyweight thermals and apparel, from our bestselling Duofold thermal shirt to ankle length bottom options, all at the lowest prices of the season. Enjoy exclusive deals on our trusted thermal wear and start your cozy, active winter today!
A Century of Innovation in Cold-Weather Comfort
Since 1906, Duofold thermal underwear has been at the forefront of innovation, crafting base layers that stand up to the coldest conditions while keeping you comfortable. Our journey began with a simple mission: to create Duofold men’s long underwear that truly performs when the temperature drops. Today, we’re proud to continue that legacy, offering you the pinnacle of warmth and comfort in every stitch.
Two Layers, Countless Possibilities
At the heart of every men’s Duofold thermal underwear garment lies our revolutionary two-layer technology. This isn’t just underwear; it’s a meticulously engineered system designed to keep you warm, dry, and comfortable in even the most challenging environments.
How It Works:
- Inner Layer: Soft, moisture-wicking fabric that keeps you dry
- Outer Layer: Insulating material that traps warmth close to your body
- Air Pocket: The space between layers creates an additional barrier against the cold
This unique construction allows our men’s Duofold thermals to feel lightweight and breathable while providing the warmth of multiple layers. It’s the perfect balance of form and function, giving you the freedom to move without compromising on thermal protection.
Materials Matter – Softness and Performance
We’ve spent decades perfecting our fabric blend to bring you the best of both worlds. Our signature cotton-rich composition (typically 60% cotton, 40% polyester) offers:
- Unparalleled Softness: The high cotton content feels great against your skin
- Effective Moisture Management: Polyester fibers wick away sweat to keep you dry
- Durable Comfort: Our blend maintains its shape and performance, wash after wash
- Designed specifically as men’s thermal underwear, our products deliver lasting quality you can trust for years to come.
Designed for Life in Motion
Whether you’re hitting the slopes, trekking through snowy landscapes, or simply braving a chilly morning commute, Duofold long underwear for men and women is engineered to move with you. Our attention to detail ensures that every garment not only performs but also enhances your comfort:
- Tag-Free Design: No more irritating labels to distract you from your adventures
- Flat-Locked Seams: Smooth construction minimizes chafing, even during intense activity
- Rib-Knit Cuffs: Keep cold air out and warmth in where you need it most
- Variety of Styles: From crew necks to long johns, we have the perfect fit for every need
Trusted by Professionals, Loved by Enthusiasts
Duofold underwear isn’t just for casual wear. Our commitment to quality and performance has earned us the trust of professionals who demand the best:
- Official Supplier to the National Ski Patrol: Keeping rescuers warm in extreme conditions
- U.S. Military Approved: Providing comfort and protection to those who serve
- Outdoor Enthusiasts’ Choice: Relied upon by hikers, hunters, and winter sports aficionados
This professional-grade performance is available to everyone, ensuring that whether you’re scaling a mountain or building a snowman in the backyard, you’re equipped with the best.
A Legacy of Warmth, A Future of Innovation
Duofold remains committed to pushing the boundaries of thermal wear technology. We’re constantly researching new materials, refining our designs, and listening to our customers to bring you base layers that exceed your expectations.
Our dedication to innovation is matched only by our commitment to sustainability. We’re working hard to reduce our environmental impact, exploring eco-friendly materials and men’s brushed fabric technologies and production methods without compromising the quality you’ve come to expect from Duofold thermal underwear.
Experience the Warmth for Yourself
We could tell you about the science behind our fabrics or the rigorous testing each garment undergoes, but the true test of Duofold underwear quality is in the wearing. Slip on a pair of our thermal leggings or a long-sleeve top, and you’ll immediately feel the difference.
- Instant Warmth: Feel the cozy embrace of our two-layer technology
- All-Day Comfort: Stay dry and comfortable, no matter how long your adventure lasts
- Versatile Performance: From low-intensity activities to high-energy sports, Duofold adapts to your needs
Join the Duofold Family
For over a century, we’ve been more than just a brand – we’ve been a trusted companion on countless adventures, a shield against the biting cold, and a comfort in the great outdoors. When you choose Duofold long underwear for women or men, you’re not just buying underwear; you’re becoming part of a legacy of warmth, comfort, and uncompromising quality.
Ready to redefine your cold-weather experience? Explore our range of thermal underwear and base layers. Feel the warmth that’s stood the test of time, and discover why generations of outdoor enthusiasts, athletes, and everyday adventurers have made Duofold their first choice for staying warm.
Embrace the cold. Conquer your limits. Experience Duofold thermal underwear.
Is Duofold a brand?
Yes, Duofold company has been a leader in base layer apparel since 1906, specializing in performance-based outdoor wear and thermal underwear.
Who makes Duofold?
Hanes, officially known as Hanesbrands Inc., manufactures Duofold products with a commitment to quality and customer privacy.
Who owns Duofold?
Duofold is part of Hanesbrands Inc., which produces the Champion Duofold long underwear line along with other popular brands like Playtex and Bali.
What is Duofold fabric made of?
Duofold’s innovative two-layer thermal technology combines a soft, moisture-wicking inner layer (60% cotton) with an insulating outer layer (40% polyester). This unique construction prevents irritation while providing superior warmth and breathability.
Where to buy Duofold long underwear?
The easiest way to purchase Duofold is through our official Amazon store, which offers our complete collection of styles and sizes. Our products are also available through the HanesBrands B2B website, NY Lingerie, and select sporting goods and department stores.