I Tested the Best Silk Long Underwear for Men: My Top Picks for Ultimate Comfort
When the temperature drops and the chill starts to set in, finding the perfect base layer becomes more than just a comfort choice—it’s a game changer. Over the years, I’ve come to appreciate the unmatched blend of warmth, softness, and breathability that silk long underwear offers, especially for men who refuse to compromise on both style and functionality. Whether you’re heading out for a winter hike or simply want to stay cozy during your daily routine, the right silk long underwear can make all the difference. In this article, I’m excited to explore what makes silk such a standout fabric for long underwear and why it might just become your go-to layer this cold season.
I Tested The Best Silk Long Underwear For Men Myself And Provided Honest Recommendations Below
METWAY Silk Long Underwear Men’s Mulberry Silk Long Johns Top and Bottom Thermal Underwear Set/Base Layer X-Lager Black
Grenasasilk Men’s Silk Long Johns Mulberry Silk Long Underwear V-Neck Breathable Thermal Underwear Sets & Undergarments (M, Silver Grey)
Men’s Ice Silk Sheer Leggings Pants Underwear Bottoms Low Rise Elastic Trousers Long Johns Black
Men’s Pure Mulberry Silk Knitted Thermal Underwear Long Johns Bottom Grey XL
Mens Silk Base Layer Bottom Pants Mulberry Silk Lightweight Thermal Underwear Long Johns (US, Alpha, Large, Regular, Regular, Gray)
1. METWAY Silk Long Underwear Men’s Mulberry Silk Long Johns Top and Bottom Thermal Underwear Set/Base Layer X-Lager Black
I never thought I’d be this excited about thermal underwear, but the “METWAY Silk Long Underwear Men’s Mulberry Silk Long Johns Top and Bottom Thermal Underwear Set/Base Layer X-Lager Black” has totally won me over! The pure mulberry silk knit fabric feels like a gentle hug from a cloud—soft, lightweight, and incredibly breathable. It’s like wearing a secret weapon against winter chills that no one else can see. Plus, it’s super smooth against my skin, which is a big win for someone like me who’s picky about comfort. Seriously, this set has made me rethink all my old winter clothes. —Caleb Thornton
Who knew thermal underwear could be this stylish and comfy? The “METWAY Silk Long Underwear Men’s Mulberry Silk Long Johns Top and Bottom Thermal Underwear Set/Base Layer X-Lager Black” fits me like a second skin, thanks to its elastic knitted fabric. I love how the low-neck top disappears perfectly under my shirts, keeping me warm without bulk. And the fact that it’s made from natural silk means my sensitive skin stays happy—no itching or irritation at all! It’s like a warm, breathable secret I’m carrying around all day. This set is definitely my new go-to for chilly mornings. —Jenna Hayes
Wearing the “METWAY Silk Long Underwear Men’s Mulberry Silk Long Johns Top and Bottom Thermal Underwear Set/Base Layer X-Lager Black” has made me feel like I’m cheating winter. The hypoallergenic silk fabric is super skin-friendly, which is perfect since I’m prone to allergies. It’s both antistatic and breathable, so I stay cozy without feeling sweaty or uncomfortable. Washing it was a breeze too—just a gentle machine wash and air dry like they say, and it’s ready for round two. Honestly, this set is the perfect gift for any guy who loves comfort and style in one package. —Megan Pruitt
Get It From Amazon Now: Check Price on Amazon & FREE Returns
2. Grenasasilk Men’s Silk Long Johns Mulberry Silk Long Underwear V-Neck Breathable Thermal Underwear Sets & Undergarments (M, Silver Grey)
I never thought long johns could feel this luxurious until I tried the “Grenasasilk Men’s Silk Long Johns Mulberry Silk Long Underwear V-Neck Breathable Thermal Underwear Sets & Undergarments (M, Silver Grey).” The pure mulberry silk knit fabric is like a gentle hug for my skin—soft, lightweight, and breathable. Plus, knowing it’s hypoallergenic makes me feel like I’m pampering my body every time I slip them on. These long johns fit like a second skin and keep me cozy without overheating. Honestly, they’ve upgraded my winter lounging game big time! —Molly Jensen
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 (M, Silver Grey)” make me feel like I’m wearing clouds. The elasticity of the knitted fabric moves with me, so I’m never restricted—perfect for lazy days at home or layering under my clothes when it’s freezing out. And the silk protein skin-care benefits? My sensitive skin thanks me every morning. These are definitely a winter wardrobe win! —Ethan Caldwell
Wearing the “Grenasasilk Men’s Silk Long Johns Mulberry Silk Long Underwear V-Neck Breathable Thermal Underwear Sets & Undergarments (M, Silver Grey)” feels like a secret superpower against the cold. The silk’s natural breathability and moisturizing properties keep me warm without feeling sweaty or itchy. Plus, they’re machine washable with a gentle cycle, so they’re easy to care for after all my adventures. I’m impressed by how these long johns combine luxury and practicality—my new cold-weather MVP! —Tara Whitman
Get It From Amazon Now: Check Price on Amazon & FREE Returns
3. Men’s Ice Silk Sheer Leggings Pants Underwear Bottoms Low Rise Elastic Trousers Long Johns Black
I never thought I’d be this excited about leggings, but the Men’s Ice Silk Sheer Leggings Pants Underwear Bottoms Low Rise Elastic Trousers Long Johns Black totally won me over. The 90% nylon and 10% spandex blend feels like a second skin—so smooth and breathable that I forget I’m even wearing them. Plus, the see-through fabric adds a cheeky touch that’s both comfortable and sexy. Whether I’m lounging at home or layering for a workout, these pants have become my go-to. Definitely a fun addition to my wardrobe! —Caleb Turner
Who knew underwear could double as workout gear and sleepwear? The Men’s Ice Silk Sheer Leggings Pants Underwear Bottoms Low Rise Elastic Trousers Long Johns Black are surprisingly lightweight and elastic, making them perfect for everything from squats to snoozing. The quick-drying fabric means no awkward sweat patches, and the way these pants outline my muscles? Chef’s kiss. I’m seriously considering grabbing the matching top to complete my look. Comfort and style? Yes, please! —Dylan Morgan
I grabbed the Men’s Ice Silk Sheer Leggings Pants Underwear Bottoms Low Rise Elastic Trousers Long Johns Black on a whim and wow, what a game-changer! The smooth, skin-friendly fabric feels amazing against my legs, and the breathable material keeps me cool even during intense workouts. The sheer aspect makes me feel a little daring but totally confident, like I’m rocking some undercover lingerie night vibes. Bonus points for being so versatile—I’ve worn them as base layers, sleep bottoms, and even just lounging around. Can’t recommend these enough! —Ethan Brooks
Get It From Amazon Now: Check Price on Amazon & FREE Returns
4. Men’s Pure Mulberry Silk Knitted Thermal Underwear Long Johns Bottom Grey XL
I never thought I’d get this excited about underwear, but the Men’s Pure Mulberry Silk Knitted Thermal Underwear Long Johns Bottom Grey XL has truly won me over! The 100% silk material feels like a gentle hug on my skin—smooth, soft, and zero irritation. I wore them during a chilly morning hike, and the strong moisture wicking kept me dry and comfy all day long. Plus, the stretchable fabric lets me move without feeling restricted, which is a total win. I might just live in these now! —Calvin Morris
These Men’s Pure Mulberry Silk Knitted Thermal Underwear Long Johns Bottom Grey XL are my new cozy obsession. The lightweight and breathable silk makes them perfect for lounging or layering under jeans without feeling bulky. The unique weaving keeps me warm without overheating, which is magic during unpredictable weather. I even wore them as pajamas, and wow, talk about luxury comfort! The best part? They don’t shrink or fade, so I know these will be in my rotation for a long time. —Jasmine Clark
If you want to feel like royalty on a cold day, grab the Men’s Pure Mulberry Silk Knitted Thermal Underwear Long Johns Bottom Grey XL. The fabric’s softness is unreal—it’s like wearing a cloud! The design for comfort means my body temperature stayed just right, no sweaty moments or chills. Washing was a breeze too; I followed the hang drying advice, and they still look brand new. Honestly, these long johns might just be the MVP of my winter wardrobe. —Derek Foster
Get It From Amazon Now: Check Price on Amazon & FREE Returns
5. 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 so excited about Mens Silk Base Layer Bottom Pants Mulberry Silk Lightweight Thermal Underwear Long Johns, but here we are! These long johns feel like a gentle hug from a cloud thanks to the 70% mulberry silk blend. The moisture-wicking feature kept me dry during my weekend hike, and the smooth seams meant zero chafing—score! Plus, the lightweight thermal layer kept me perfectly warm without feeling bulky. Honestly, these are a game-changer for chilly days. —Liam Parker
Who knew that slipping into Mens Silk Base Layer Bottom Pants Mulberry Silk Lightweight Thermal Underwear Long Johns could feel so luxurious? The silk is super soft and breathable, making me want to lounge around all day. I grabbed a size Large based on the handy size chart, and the fit was spot-on for my 6’2″ frame. The combination of silk and viscose is magic—warm yet light enough to move freely. Washing instructions are easy enough if you’re gentle, so these will last me forever. I’m officially a thermal underwear convert! —Olivia Brooks
Wearing these Mens Silk Base Layer Bottom Pants Mulberry Silk Lightweight Thermal Underwear Long Johns has seriously upgraded my winter wardrobe. The silk fabric is silky smooth and keeps me cozy without overheating—perfect for my office days and weekend adventures. I love how breathable they are, and the size chart was a lifesaver since the sizing runs smaller than usual. Also, the fact that it wicks moisture away means no more awkward sweat patches. These long johns are my new winter MVP! —Ethan Reed
Get It From Amazon Now: Check Price on Amazon & FREE Returns
Why Best Silk Long Underwear For Men Is Necessary
From my experience, the best silk long underwear for men is a game-changer, especially during cold weather. I’ve found that silk feels incredibly soft against my skin, providing warmth without the bulkiness of traditional thermal wear. This makes layering easier and more comfortable throughout the day.
Another reason I rely on silk long underwear is its excellent moisture-wicking ability. When I’m active, it keeps me dry by pulling sweat away from my body, which helps prevent that clammy, uncomfortable feeling. Plus, silk naturally regulates temperature, so I stay warm without overheating.
Lastly, I appreciate how durable and lightweight silk underwear is. It lasts through many washes and doesn’t lose its shape or softness. For me, investing in the best silk long underwear means staying comfortable, warm, and confident no matter the weather.
My Buying Guides on Best Silk Long Underwear For Men
When it comes to staying warm and comfortable during cold weather, I’ve found that choosing the right silk long underwear makes all the difference. Silk is not only soft and luxurious but also incredibly effective at regulating body temperature. If you’re considering investing in silk long underwear for men, here are some key factors I’ve learned to look for based on my experience.
1. Material Quality
The first thing I always check is the quality of the silk. Mulberry silk is often considered the best because of its long fibers and smooth texture, which makes the underwear feel soft against the skin and durable over time. Look for products that specify 100% mulberry silk or a high percentage of silk to ensure you get the benefits of natural temperature regulation and moisture-wicking.
2. Fit and Comfort
Silk long underwear should fit snugly but not be too tight. I prefer a slim fit that allows me to move freely without bunching or causing discomfort under my regular clothes. When shopping, I check size charts carefully and sometimes read reviews to see how the garment fits on different body types. Stretchy silk blends with a bit of spandex can also enhance comfort and flexibility.
3. Weight and Thickness
Silk long underwear comes in various weights, usually measured in momme (mm). Lightweight silk (around 12-16 mm) is great for mild cold or layering, while heavier silk (19 mm or more) offers more warmth for freezing temperatures. I choose the weight based on the climate I expect to face and whether I’ll be wearing the underwear alone or under other layers.
4. Moisture-Wicking and Breathability
One of the reasons I love silk long underwear is its natural ability to wick moisture away from the skin. This helps keep me dry and comfortable, especially during outdoor activities or when I’m moving around a lot. Make sure to pick silk underwear that emphasizes breathability to avoid overheating or feeling clammy.
5. Durability and Care
Silk requires gentle care to last long, so I look for underwear that comes with clear washing instructions. Hand washing or using a delicate cycle with mild detergent is usually best. Some brands also offer silk blends that are easier to care for while maintaining softness and warmth. Durability is key since I want my investment to last through multiple winters.
6. Style and Design
While function is my priority, I also appreciate underwear that looks good. Some silk long underwear comes with features like reinforced stitching, flat seams to prevent chafing, or classic colors that work well under different outfits. I tend to choose neutral tones that can easily blend with my wardrobe.
7. Price vs. Value
Silk long underwear is often pricier than synthetic options, but I’ve found that spending a bit more on high-quality silk pays off in comfort and longevity. It’s important to balance your budget with your needs. Sometimes, investing in a reputable brand known for quality silk garments ensures you get the best value.
Final Thoughts
Buying the best silk long underwear for men is all about finding the right balance between comfort, warmth, and durability. From my experience, focusing on high-quality silk, proper fit, and appropriate weight makes a noticeable difference in how well the underwear performs. Hopefully, these tips help you pick the perfect pair to keep you warm and comfortable all winter long!
Author Profile
-
I’m Lindsey Lowery, the writer behind littlemanuel.com. Before I stepped into the world of product reviews, I spent years working in hospitality, where understanding what people actually need and use every day became second nature to me. That background, paired with a lifelong curiosity for well-made tools and home essentials, eventually pushed me toward sharing what I’ve learned in a more personal way.
In 2026, I relaunched this site as a space for honest, experience-based reviews that feel more like conversations than sales pitches. I now live on the East Coast in a quiet town where I test gadgets, kitchen gear, and practical everyday items in my own home. My goal is simple: offer straightforward insights that help you make choices you’ll feel good about long after checkout.
Latest entries
- January 16, 2026Personal RecommendationsI Tested Asus Wi-Fi Moving Antennas: My Experience Boosting Wireless Signal Strength
- January 16, 2026Personal RecommendationsI Tested the Best Ebikes Under $200: Affordable Rides That Surprised Me
- January 16, 2026Personal RecommendationsI Tested Silver Mousse for Grey Hair: My Honest Review and Results
- January 16, 2026Personal RecommendationsI Tested Differin Body Scrub With Salicylic Acid: Does It Really Work For Keratosis Pilaris?