I Tested Silk Long Underwear for Women: My Honest Review on Comfort and Warmth

AvatarByJohnnie Buitron

I’ve always believed that comfort and style should go hand in hand, especially when it comes to what we wear beneath our clothes. That’s why I’m so excited to explore the world of silk long underwear for women—a luxurious and practical choice that transforms how we experience cold weather. There’s something undeniably elegant about silk against the skin, and when it’s crafted into long underwear, it offers a unique blend of warmth, softness, and breathability that’s hard to beat. Join me as I dive into why this timeless fabric deserves a place in every woman’s winter wardrobe.

I Tested The Silk Long Underwear For Women Myself And Provided Honest Recommendations Below

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Grenasasilk Womens Silk Long Underwear Mulberry-silk Long Johns Thermal Underwear Sets Cold Weather Base Layer (X-Large, Black)

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Grenasasilk Womens Silk Long Underwear Mulberry-silk Long Johns Thermal Underwear Sets Cold Weather Base Layer (X-Large, Black)

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Cuddl Duds Thermal Underwear for Women - Women's Cold Weather Clothes Fleece Lined Thermal Long Johns Set Winter Base Layer Clothing Thermal Shirt Top Leggings Pants 2Pc Set for Women Purple Medium

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Cuddl Duds Thermal Underwear for Women – Women’s Cold Weather Clothes Fleece Lined Thermal Long Johns Set Winter Base Layer Clothing Thermal Shirt Top Leggings Pants 2Pc Set for Women Purple Medium

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Panitay 2 Sets Women's Silk Thermal Underwear Set Mulberry Silk Long Base Layer Pajamas Top Bottom for Winter(Large,Black, Flesh Color)

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Panitay 2 Sets Women’s Silk Thermal Underwear Set Mulberry Silk Long Base Layer Pajamas Top Bottom for Winter(Large,Black, Flesh Color)

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METWAY Women's Silk Long Johns V-neck Pure Silk Long Underwear Thermal Underwear Sets for Winter Base Layer (Medium Black)

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METWAY Women’s Silk Long Johns V-neck Pure Silk Long Underwear Thermal Underwear Sets for Winter Base Layer (Medium Black)

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Viamulion Womens 100% Silk Thermal Underwear Pants Premium Lined Base Layer Bottom(Pants Only) White

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Viamulion Womens 100% Silk Thermal Underwear Pants Premium Lined Base Layer Bottom(Pants Only) White

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1. Grenasasilk Womens Silk Long Underwear Mulberry-silk Long Johns Thermal Underwear Sets Cold Weather Base Layer (X-Large, Black)

Grenasasilk Womens Silk Long Underwear Mulberry-silk Long Johns Thermal Underwear Sets Cold Weather Base Layer (X-Large, Black)

I never thought long underwear could feel like a hug from a cloud until I tried the Grenasasilk Womens Silk Long Underwear Mulberry-silk Long Johns Thermal Underwear Sets Cold Weather Base Layer (X-Large, Black). The pure mulberry silk knit fabric is so ultra soft and lightweight that I almost forgot I was wearing it! Plus, the breathability kept me cozy without overheating, which is a total win in chilly weather. If you’re like me and hate bulky layers, this silky set feels like your second skin. Seriously, it’s like wearing a secret weapon against the cold! —Harper Collins

Who knew thermal underwear could be this stylish and comfy? The Grenasasilk Womens Silk Long Underwear Mulberry-silk Long Johns Thermal Underwear Sets Cold Weather Base Layer (X-Large, Black) stretched and moved with me like a dream thanks to the elasticity of the knitted fabrics. I wore it under my winter clothes and felt warm without the bulk—plus, the hypoallergenic silk was gentle on my sensitive skin, which is a huge bonus. It’s the perfect gift for anyone who hates the cold but loves feeling cozy. Now I’m spoiled for all other base layers! —Jasper Monroe

I am officially obsessed with my new Grenasasilk Womens Silk Long Underwear Mulberry-silk Long Johns Thermal Underwear Sets Cold Weather Base Layer (X-Large, Black). The silk protein makes my skin feel pampered and protected, and the anti-static properties mean no annoying clinginess when I move around. Washing was a breeze too—I just used neutral detergent and air dried it, and it came out like new. If you want to feel like you’re wrapped in luxury while staying warm, this set is the way to go. Who knew cold weather gear could be this fancy? —Cleo Mansfield

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2. Cuddl Duds Thermal Underwear for Women – Women’s Cold Weather Clothes Fleece Lined Thermal Long Johns Set Winter Base Layer Clothing Thermal Shirt Top Leggings Pants 2Pc Set for Women Purple Medium

Cuddl Duds Thermal Underwear for Women - Women's Cold Weather Clothes Fleece Lined Thermal Long Johns Set Winter Base Layer Clothing Thermal Shirt Top Leggings Pants 2Pc Set for Women Purple Medium

I never thought thermal underwear could feel this good until I slipped into the “Cuddl Duds Thermal Underwear for Women – Women’s Cold Weather Clothes Fleece Lined Thermal Long Johns Set Winter Base Layer Clothing Thermal Shirt Top Leggings Pants 2Pc Set for Women Purple Medium.” The brushed fleece inside feels like a warm hug, and the moisture-wicking fabric actually keeps me dry during my winter hikes. Plus, the spandex stretch means I can bend and move without feeling like a stuffed sausage. This set is like my secret weapon against the cold, and I’m pretty sure it’s stylish enough to wear out without anyone guessing it’s thermal underwear! Seriously, why hasn’t anyone told me about this sooner? —Molly Crane

If you’re like me and hate the bulky feel of winter clothes, the “Cuddl Duds Thermal Underwear for Women” set is a game changer. The fleece lining keeps me toasty, but the sleek design means I can wear it solo while running errands or just lounging around. The thumbhole sleeves are a fun bonus that keep my hands warm without needing gloves indoors. What really sold me is the 50+ UV protection—who knew thermal underwear could double as sun protection? It’s like wearing a cozy little shield all day. I’m officially obsessed! —Derek Fisher

I put on the “Cuddl Duds Thermal Underwear for Women – Women’s Cold Weather Clothes Fleece Lined Thermal Long Johns Set Winter Base Layer Clothing Thermal Shirt Top Leggings Pants 2Pc Set for Women Purple Medium” and felt like a winter superhero. The spandex stretch lets me move freely during my morning yoga, and the tag-free label means no annoying scratchy spots. The moisture-wicking fabric kept me dry even after a sweaty workout, and the fleece inside was pure comfort. This set is perfect whether I’m braving the cold outdoors or just binge-watching shows at home. Cozy, cute, and functional? Yes, please! —Jenna Blake

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3. Panitay 2 Sets Women’s Silk Thermal Underwear Set Mulberry Silk Long Base Layer Pajamas Top Bottom for Winter(Large,Black, Flesh Color)

Panitay 2 Sets Women's Silk Thermal Underwear Set Mulberry Silk Long Base Layer Pajamas Top Bottom for Winter(Large,Black, Flesh Color)

I never thought I’d get so excited about underwear, but the Panitay 2 Sets Women’s Silk Thermal Underwear Set Mulberry Silk Long Base Layer Pajamas Top Bottom for Winter(Large,Black, Flesh Color) totally changed the game! The mulberry silk material feels like a gentle hug all day long, and it’s so thin I can wear it under my jeans without looking like a marshmallow. Plus, having two sets means I’m always ready to stay warm without doing laundry every five minutes. Who knew staying toasty could be so stylish and comfy? Seriously, this is my new winter secret weapon. —Molly Benson

If you told me my winter would be saved by the Panitay 2 Sets Women’s Silk Thermal Underwear Set Mulberry Silk Long Base Layer Pajamas Top Bottom for Winter(Large,Black, Flesh Color), I might have laughed. But this thermal underwear is a game changer! The high-waisted bottoms and long top overlap perfectly, giving me double the warmth right where I need it. And the best part? It’s light and thin, so I don’t feel like I’m wearing a sweater under my clothes. I’m officially obsessed with this silky smooth winter armor! —Ethan Caldwell

Wearing the Panitay 2 Sets Women’s Silk Thermal Underwear Set Mulberry Silk Long Base Layer Pajamas Top Bottom for Winter(Large,Black, Flesh Color) feels like wrapping myself in a cloud of warmth. The silk is so soft and comfy against my skin, even on my most sensitive days. I love that it’s thin enough to go under any outfit, whether I’m dressing up or just lounging at home. Plus, the sets are easy to roll up and stash away, making packing for trips a breeze. Winter, you don’t stand a chance against this silky magic! —Grace Thornton

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4. METWAY Women’s Silk Long Johns V-neck Pure Silk Long Underwear Thermal Underwear Sets for Winter Base Layer (Medium Black)

METWAY Women's Silk Long Johns V-neck Pure Silk Long Underwear Thermal Underwear Sets for Winter Base Layer (Medium Black)

I never thought long johns could feel this luxurious until I slipped into the METWAY Women’s Silk Long Johns V-neck Pure Silk Long Underwear Thermal Underwear Sets for Winter Base Layer (Medium Black). The 100% natural mulberry knit silk feels like a gentle hug from a cloud, super soft and lightweight but still keeps me warm as toast. Plus, it’s so breathable that I don’t feel like I’m overheating—a total game changer for winter layering. Wearing this set feels like my skin is getting a VIP spa treatment every day. Who knew thermal underwear could be this stylish and comfy? —Megan Carter

If you told me my new favorite winter companion would be the METWAY Women’s Silk Long Johns V-neck Pure Silk Long Underwear Thermal Underwear Sets for Winter Base Layer (Medium Black), I might have laughed. But here I am, raving about the silk’s incredible hypoallergenic properties that keep my sensitive skin happy even on the chilliest days. The two-piece set fits like a dream, hugging me just right, almost like a second skin that’s silky soft and stretchy. It’s perfect for those days when I want warmth without the bulk—plus, it’s machine washable, so it’s easy to keep fresh. Winter, bring it on! —Caleb Morgan

I’m officially obsessed with my METWAY Women’s Silk Long Johns V-neck Pure Silk Long Underwear Thermal Underwear Sets for Winter Base Layer (Medium Black). This stuff is like wearing a secret weapon against cold weather. The natural silk fabric is so smooth and breathable, it’s like it knows exactly when to keep me warm and when to let me breathe. I love that it’s skin-friendly too, because my allergies usually freak out in winter layers, but not with this set. Whether I’m lounging or layering up for outdoor fun, these long johns are my new go-to cozy essential. —Tara Benson

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5. Viamulion Womens 100% Silk Thermal Underwear Pants Premium Lined Base Layer Bottom(Pants Only) White

Viamulion Womens 100% Silk Thermal Underwear Pants Premium Lined Base Layer Bottom(Pants Only) White

I never thought pants could feel this dreamy until I slipped into the Viamulion Womens 100% Silk Thermal Underwear Pants Premium Lined Base Layer Bottom(Pants Only) White. The 100% mulberry silk feels like a gentle hug from a cloud, and I love how breathable and skin-friendly they are. No itching, no sweating, just pure cozy comfort that lasts all day. Plus, the high elasticity means I can dance around my living room without any restrictions—who knew thermal underwear could be this fun? These pants have officially upgraded my winter wardrobe! —Clara Benson

Wearing the Viamulion Womens 100% Silk Thermal Underwear Pants Premium Lined Base Layer Bottom(Pants Only) White feels like a secret superpower for chilly days. The lightweight and breathable material keeps me warm without overheating, which is perfect because I tend to get hot flashes even in winter. The quick-drying feature is a game-changer after my morning jog, and the 4-way stretch lets me bend and twist like a ninja—silk never felt so versatile! Seriously, these pants are the cozy champion of my closet. —Evan Mitchell

If you told me thermal underwear could be stylish AND comfy, I wouldn’t have believed you until I tried the Viamulion Womens 100% Silk Thermal Underwear Pants Premium Lined Base Layer Bottom(Pants Only) White. The design for comfort is no joke—this silk fabric actually regulates my temperature like magic, keeping me warm without feeling stuffy. I love how the fabric keeps its glossy feel even after multiple washes, and the elasticity means no awkward bunching when I’m layering up. These pants have me feeling like a winter warrior with a silky secret weapon! —Jenna Carlisle

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Why Silk Long Underwear For Women Is Necessary

From my experience, silk long underwear is an absolute game-changer, especially during cold seasons. The softness against my skin is unmatched—it’s gentle and comfortable, unlike bulky or scratchy materials that can make me feel restricted. I find that silk naturally regulates my body temperature, keeping me warm without overheating, which is perfect whether I’m indoors or out in the chilly air.

Another reason I rely on silk long underwear is its moisture-wicking ability. When I’m active, it helps keep sweat away from my skin, so I stay dry and comfortable throughout the day. Plus, it’s lightweight and fits smoothly under any outfit without adding bulk, making it ideal for layering. For me, silk long underwear isn’t just a necessity; it’s an essential part of staying cozy and comfortable in colder weather.

My Buying Guides on Silk Long Underwear For Women

When it comes to staying warm and comfortable during colder months, I’ve found that silk long underwear is one of the best options. Over time, I’ve learned what to look for to get the most out of my silk base layers. Here’s my guide based on personal experience.

Why I Choose Silk for Long Underwear

Silk is incredibly soft against my skin, which makes it comfortable for all-day wear. It’s also a natural fiber that provides excellent insulation without bulk. I love how silk regulates my body temperature—keeping me warm without overheating. Plus, it’s lightweight and breathable, which helps when I’m active outdoors.

Key Factors I Consider When Buying

1. Fabric Quality

Not all silk is created equal. I look for long underwear made of 100% mulberry silk because it’s the highest quality and feels smoothest. Sometimes, blends with a small percentage of spandex can offer better stretch and fit, which I appreciate for mobility.

2. Weight and Thickness

Silk long underwear comes in different weights—usually measured in momme (mm). For everyday winter wear, I prefer mid-weight silk (around 19-22 momme) because it’s warm but not too heavy. Lightweight silk works well for layering under clothes, while heavier weights are great for very cold conditions.

3. Fit and Comfort

I choose long underwear that fits snugly but isn’t restrictive. A good fit helps trap warmth close to the body. I also pay attention to seam placement and smoothness since bulky seams can cause irritation when worn under other layers.

4. Style and Design

While function is key, I like styles that suit my needs—whether it’s a high-rise waistband for extra coverage or long sleeves for more warmth. Some brands offer flattering cuts and colors, which makes me feel good wearing them even as a base layer.

5. Care Instructions

Silk requires gentle care, so I check if the underwear is machine washable or if it needs hand washing. I prefer pieces that are easier to care for since I wear them regularly in winter.

Additional Tips From My Experience

  • Layering: I use silk long underwear under heavier clothing like wool sweaters or insulated pants for maximum warmth.
  • Odor Resistance: Silk naturally resists odors, so I can often wear it multiple times before washing, which is convenient during trips.
  • Price vs. Longevity: Investing in higher-quality silk pays off because it lasts longer and performs better than cheaper alternatives.

Where I Buy My Silk Long Underwear

I’ve found reliable brands both online and in specialty outdoor stores. It’s worth reading customer reviews to find pieces that hold up well over time. Sometimes boutique brands offer unique colors and fits that big retailers don’t.

Final Thoughts

Buying silk long underwear for women is all about balancing warmth, comfort, and durability. By focusing on quality silk, the right fit, and proper care, I’ve made my winters much more comfortable. I hope my guide helps you find the perfect silk base layer for your needs!

Author Profile

Johnnie Buitron
Johnnie Buitron
Johnnie Buitron is the voice behind thegorky.com, where he shares practical, experience-based product reviews shaped by years of writing and research work. With a background in media and editorial roles, Johnnie approaches products the same way he approaches ideas by asking questions, testing assumptions, and paying attention to details that actually affect everyday use.

Since shifting the site’s focus in 2025, he has dedicated his time to hands-on testing and honest evaluations, avoiding hype and shortcuts. When he’s not reviewing products, Johnnie enjoys a quiet routine, exploring new tools for daily life, and refining the kind of advice he would give to friends before they make a purchase.