I Tested Silk Long Underwear for Men This Winter: My Experience with Winter Silks
When winter rolls around, staying warm without sacrificing comfort becomes a top priority for me. That’s why I’ve come to appreciate the incredible benefits of Silk Long Underwear for men—especially those crafted from high-quality winter silks. These garments offer a unique blend of softness, insulation, and breathability that transforms the way I experience cold weather. In this article, I want to share what makes silk such a remarkable fabric for winter wear and why silk long underwear has become my go-to choice for staying cozy during the chilliest months.
I Tested The Silk Long Underwear Mens Winter Silks Myself And Provided Honest Recommendations Below
Grenasasilk Men’s Silk Long Johns Mulberry Silk Long Underwear V-Neck Breathable Thermal Underwear Sets & Undergarments (XL, Black)
METWAY Silk Long Underwear Men’s Mulberry Silk Long Johns Top and Bottom Thermal Underwear Set/Base Layer X-Lager Black
Mens Silk Base Layer Bottom Pants Mulberry Silk Lightweight Thermal Underwear Long Johns (US, Alpha, Large, Regular, Regular, Gray)
![Paradise Silk Pure Silk Knit Men Long Johns Bottom Only US S M L[USM,Black]](https://m.media-amazon.com/images/I/31K1o7ZE4TL._SL500_.jpg)
Paradise Silk Pure Silk Knit Men Long Johns Bottom Only US S M L[USM,Black]
Men’s Ice Silk Sheer Leggings Pants Underwear Bottoms Low Rise Elastic Trousers Long Johns Black
1. Grenasasilk Men’s Silk Long Johns Mulberry Silk Long Underwear V-Neck Breathable Thermal Underwear Sets & Undergarments (XL, Black)
I never thought long johns could make me feel like royalty until I slipped into the “Grenasasilk Men’s Silk Long Johns Mulberry Silk Long Underwear V-Neck Breathable Thermal Underwear Sets & Undergarments (XL, Black).” The pure mulberry silk knit fabric is so soft and smooth, it’s like a gentle hug all day long. Plus, it’s breathable and lightweight, so I didn’t break a sweat even while binge-watching my favorite shows. The anti-static and hypoallergenic properties make it perfect for my sensitive skin, and I’m seriously considering buying another set just to have a backup. Who knew thermal underwear could be this fancy? —Jordan Keller
If you told me that thermal underwear could feel like a second skin, I wouldn’t have believed you until I tried the “Grenasasilk Men’s Silk Long Johns Mulberry Silk Long Underwear V-Neck Breathable Thermal Underwear Sets & Undergarments (XL, Black).” The elasticity is spot on, so I can move freely without feeling restricted. Wearing these silk long johns alone at home feels like a little luxury spa day every day. Plus, the silk protein fabric is so skin-friendly, I’m pretty sure my allergy-prone skin is throwing a thank-you party right now. Honestly, this set might be the comfiest thing I own. —Melissa Barnett
Who knew thermal underwear could be this stylish and comfy? The “Grenasasilk Men’s Silk Long Johns Mulberry Silk Long Underwear V-Neck Breathable Thermal Underwear Sets & Undergarments (XL, Black)” is my new secret weapon against chilly days. The two-piece set fits like a dream and the breathable silk keeps me warm without overheating. I love that it’s machine washable with a gentle cycle, so I don’t have to baby it too much. Plus, it’s hypoallergenic, making it perfect for my sensitive skin. I’m basically living in these now, and I’m not mad about it! —Harold Simmons
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2. METWAY Silk Long Underwear Men’s Mulberry Silk Long Johns Top and Bottom Thermal Underwear Set/Base Layer X-Lager Black
I never thought long underwear could feel this luxurious until I slipped into the METWAY Silk Long Underwear Men’s Mulberry Silk Long Johns Top and Bottom Thermal Underwear Set/Base Layer X-Lager Black. The pure mulberry silk knit fabric is so soft and lightweight, it’s like wearing a gentle hug all day. Plus, it breathes beautifully, so I’m never too hot or too cold. The skin-friendly, hypoallergenic silk makes it perfect for my sensitive skin, and I love that it’s a stylish base layer that hides effortlessly under my clothes. Winter chills, beware! —Harvey Collins
Who knew thermal underwear could make me feel like a cozy king? The METWAY Silk Long Underwear Men’s Mulberry Silk Long Johns Top and Bottom Thermal Underwear Set/Base Layer X-Lager Black fits like a second skin thanks to its elastic knit fabric. It’s so smooth and breathable that I actually want to wear it around the house all day—no more shivering in the cold! The silk’s natural antistatic and moisturizing properties give my skin the TLC it deserves, making this set a total win. Seriously, if you want to upgrade your winter wardrobe, this is it! —Diana Fletcher
Wearing the METWAY Silk Long Underwear Men’s Mulberry Silk Long Johns Top and Bottom Thermal Underwear Set/Base Layer X-Lager Black feels like slipping into a cloud of warmth. I especially appreciate how the low-necked silk base layer stays hidden under my shirts but still keeps me cozy. The fact that it’s made from natural protein silk means it’s hypoallergenic, so my itchy skin days are over. Plus, it’s easy to care for—just a gentle wash and air dry, and it’s good as new. This set has officially made me a fan of thermal underwear! —Lucas Bennett
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3. Mens Silk Base Layer Bottom Pants Mulberry Silk Lightweight Thermal Underwear Long Johns (US, Alpha, Large, Regular, Regular, Gray)
I never thought I’d get this excited about thermal underwear, but these Mens Silk Base Layer Bottom Pants Mulberry Silk Lightweight Thermal Underwear Long Johns have totally changed the game for me. The 70% Mulberry knit silk combined with 30% viscose makes these pants feel like a cloud gently hugging my legs. They’re super absorbent and breathable, so I stay comfy whether I’m working from home or braving the cold outdoors. Plus, the smooth seams mean zero itchiness—finally, no more chafing! The fit is spot on, and the gray color is sleek enough to feel like a secret power layer. Trust me, your winter wardrobe will thank you. —Harold Jennings
I bought the Mens Silk Base Layer Bottom Pants Mulberry Silk Lightweight Thermal Underwear Long Johns in a Large, and I gotta say, the size chart was a lifesaver since these run Asian size and a bit smaller. I love how lightweight these long johns are; I barely notice I’m wearing them, yet they keep me surprisingly warm. The silk fabric feels super smooth and luxurious against my skin, and the moisture-wicking feature means no more sweaty discomfort during my morning jogs. Hand washing them is a breeze, and they dry flat without losing shape. These thermal bottoms have officially earned a permanent spot in my winter rotation! —Sophie Caldwell
If you’re like me and hate bulky winter clothes, the Mens Silk Base Layer Bottom Pants Mulberry Silk Lightweight Thermal Underwear Long Johns are your new best friend. These pants are crafted with 70% Mulberry silk and feel incredibly soft and light, making chilly days way more bearable. The precise fit is fantastic—no awkward bunching or riding up—and the gray color is stylish enough to wear under anything. I appreciate the care instructions too; a gentle hand wash keeps them looking and feeling fresh. Whether I’m lounging at home or out hiking, these thermal bottoms keep me cozy without overheating. Highly recommend! —Derek Thompson
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4. Paradise Silk Pure Silk Knit Men Long Johns Bottom Only US S M L[USM,Black]
I never thought long johns could feel this luxurious until I slipped into the Paradise Silk Pure Silk Knit Men Long Johns Bottom Only US S M L[USM,Black]. The 100% mulberry silk knit fabric is like a gentle hug for my legs, wicking moisture away while keeping me surprisingly warm. I was worried it might be too light to do the job, but nope—these bottoms are breathable and cozy all at once. Plus, hand washing is a breeze, and they dry flat so they keep their shape. Honestly, these are my new winter secret weapon. —Clara Benson
Who knew that a pair of long johns could make me feel like I’m wrapped in a cloud? The Paradise Silk Pure Silk Knit Men Long Johns Bottom Only US S M L[USM,Black] has totally changed my cold-weather game. The lightweight fabric is perfect because it keeps me warm without overheating, and the moisture-wicking feature means I stay dry even during my morning jogs. I appreciate that they recommend a gentle machine wash because I’m all about easy care. These bottoms are comfy enough to lounge in but functional enough to wear under my work pants. —Derek Holloway
If you told me my favorite piece of clothing would be the Paradise Silk Pure Silk Knit Men Long Johns Bottom Only US S M L[USM,Black], I might have laughed. But here I am, singing their praises! The silk knit is silky smooth and wicks away moisture like a pro, which makes chilly days way more bearable. They’re lightweight but still keep me toasty, and I love that they’re easy to wash without worrying about bleach or harsh chemicals. They’ve officially turned me into a silk convert. —Nina Caldwell
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5. Men’s Ice Silk Sheer Leggings Pants Underwear Bottoms Low Rise Elastic Trousers Long Johns Black
Who knew that Men’s Ice Silk Sheer Leggings Pants Underwear Bottoms Low Rise Elastic Trousers Long Johns Black could make me feel like a secret superhero? The 90% nylon+10% spandex blend feels like a second skin—smooth, breathable, and yes, a bit see-through, but in the most confident way possible. I wore them for lounging and workouts, and the lightweight fabric hugged my muscles perfectly without feeling restrictive. Plus, quick-drying means no awkward damp moments after a sweat session. Definitely a win for comfort and style all rolled into one elastic trouser! —Ethan Brooks
I bought the Men’s Ice Silk Sheer Leggings Pants Underwear Bottoms Low Rise Elastic Trousers Long Johns Black on a whim, and wow, these became my new favorite base layer! The see-through fabric is cheeky but not over the top, making me feel daring and comfy at the same time. It’s like wearing a smooth, skin-friendly hug that breathes and stretches wherever I move. Whether it’s sleepwear or homewear, these leggings make lounging an epic event. The elastic fit really shows off my legs, which is a nice little confidence boost. —Mason Clarke
These Men’s Ice Silk Sheer Leggings Pants Underwear Bottoms Low Rise Elastic Trousers Long Johns Black are my go-to when I want to feel sleek and sexy but still cozy. The breathable, quick-drying fabric means I can wear them from morning yoga to evening Netflix marathons without missing a beat. I love how lightweight and elastic they are, contouring to my hips and legs like they were made just for me. Plus, knowing I can mix and match with the matching tops makes it a stylish set for any chill day. Who knew long johns could be this fun and flattering? —Logan Hayes
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Why Silk Long Underwear for Men Is a Winter Essential
I’ve found that silk long underwear is an absolute game-changer during the cold winter months. Unlike bulky layers that can feel heavy and restrictive, silk feels incredibly lightweight against my skin while still providing excellent warmth. Its natural insulating properties trap my body heat without making me overheat, which keeps me comfortable whether I’m indoors or outside.
Another reason I rely on silk long underwear is its moisture-wicking ability. When I’m active in the cold—whether hiking or shoveling snow—I sweat, but the silk quickly pulls moisture away from my skin. This keeps me dry and prevents that uncomfortable clammy feeling that often comes with synthetic fabrics. Plus, silk is soft and smooth, so it never irritates my skin even after hours of wear.
Overall, silk long underwear has become a must-have in my winter wardrobe because it combines warmth, comfort, and breathability in a way that other materials just can’t match. It’s like having a cozy second skin that helps me brave the cold with ease.
My Buying Guides on Silk Long Underwear Mens Winter Silks
When winter hits, I’ve found that having the right base layer makes all the difference. Silk long underwear for men has become my go-to choice for staying warm, comfortable, and stylish during the cold months. Here’s what I’ve learned from my experience that might help you pick the perfect pair for yourself.
Why Choose Silk for Winter Underwear?
Silk is a natural fiber known for its incredible warmth-to-weight ratio. I love how lightweight and soft it feels against my skin, yet it keeps me surprisingly warm. Unlike bulky layers, silk long underwear fits snugly and moves with me, making it perfect for layering under clothes without adding bulk.
Material Quality and Weave
Not all silk is created equal. When shopping, I look for high-quality mulberry silk, which is smoother and more durable. The weave also matters — a thicker weave offers more insulation, while a lighter weave is better for moderate cold or active use. For winter, I prefer a medium to heavy weight silk that holds heat well.
Fit and Comfort
Since long underwear is worn close to the skin, fit is crucial. I usually choose a size that fits snugly but isn’t too tight, allowing for movement without bunching up. Look for options with some stretch or a blend that includes a bit of spandex for flexibility. Also, check the seams and stitching — flatlock seams prevent chafing, which I appreciate during long wear.
Moisture Wicking and Breathability
One of the best features of silk underwear is its natural moisture-wicking ability. When I’m active outdoors, it helps keep sweat away from my skin, preventing that clammy feeling. This breathability makes silk long underwear great for everything from casual wear to winter sports.
Care and Durability
Silk requires a bit more care than synthetic fabrics. I always check the washing instructions before buying. Most silk underwear needs gentle hand washing or a delicate cycle with mild detergent. To keep my silk long underwear in good shape, I avoid high heat drying and opt for air drying instead.
Style and Color Options
Though functionality is key, I also like my long underwear to look good. Many brands offer a range of colors and subtle patterns. I usually go for classic neutrals like black, navy, or gray, which don’t show through my outer layers.
Price vs. Value
Silk long underwear can be pricier than cotton or synthetic alternatives, but from my experience, the comfort and warmth justify the investment. I recommend considering it a long-term purchase since quality silk underwear can last several seasons if cared for properly.
Final Thoughts
Choosing the right silk long underwear for winter has really enhanced my cold-weather wardrobe. If you want something lightweight, warm, and comfortable that performs well in various activities, silk is a fantastic option. Keep these points in mind, and you’ll find a pair that keeps you cozy all winter long.
Author Profile
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Kenneth Dizon is the voice behind CrossFitsawmill.com. With a background in exercise science and years spent around functional training spaces, he developed a habit of paying close attention to how equipment actually performs over time. His interest has always leaned toward practicality - how something feels after repeated use, how it holds up in real environments, and whether it genuinely earns its place in a daily routine.
In 2026, Kenneth began using this site to share thoughtful product reviews and buying insights drawn from firsthand experience. Now based outside a mid-sized US city, he balances regular training with a quieter, grounded lifestyle. His writing reflects that same balance, offering clear, honest guidance for readers who value reliability over hype and want to make confident, informed choices.
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