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Experience ultimate warmth and luxury with 100% pure mulberry silk thermal underwear that keeps you cozy all winter long
Pro tip: For best results, wash your silk thermals inside a mesh laundry bag to protect the delicate fibers and extend their lifespan
These silk thermal sets run true to size with a comfortable, form-fitting design that layers perfectly under clothing. The stretchy silk fabric naturally conforms to your body shape while maintaining its elegant drape. For a looser fit or if you are between sizes, we recommend sizing up one size.
Note: Please refer to our size chart and measure yourself before ordering to ensure the perfect fit for maximum comfort and warmth
What makes mulberry silk thermals better than regular thermal underwear?
Mulberry silk is nature's finest insulator, providing exceptional warmth without bulk while being incredibly soft and breathable. Unlike synthetic thermals, silk naturally regulates temperature, wicks moisture, and is hypoallergenic — making it perfect for sensitive skin and all-day comfort.
Can I wear these silk thermals under my regular clothes?
Absolutely! These thermals are designed with a slim, form-fitting cut that layers seamlessly under any outfit without adding bulk. The smooth silk fabric won't bunch up or create visible lines, making them perfect for wearing under work clothes, casual wear, or activewear.
How warm are these silk long johns compared to wool or fleece?
Silk provides comparable warmth to merino wool but with superior breathability and moisture-wicking properties. The natural protein fibers trap warm air close to your body while allowing excess heat and moisture to escape, keeping you comfortable in temperatures ranging from cool autumn days to freezing winter conditions.
Are these thermal sets machine washable?
While hand washing is recommended to maintain the silk's luxurious quality and extend its lifespan, you can machine wash on a delicate cycle using cold water and a mesh laundry bag. Always use a gentle, silk-friendly detergent and avoid bleach, fabric softeners, and high heat drying.
Step into cold days with a refined base layer built for steady warmth. This women silk thermal underwear set uses mulberry silk knit for a soft, smooth touch. The fabric helps manage moisture and stays light under everyday outfits. Each piece follows the form’s line without excess bulk. Packing is simple, and care is straightforward.
Mulberry silk offers a natural, elegant palm feel. The knit traps comfortable warmth while remaining light. It works from early morning commutes to late evening errands. Pair it with sweaters, vests, or insulated shells. The women silk thermal underwear set adapts to shifting forecasts and varied settings.
Build a simple system for winter days. Start with this mulberry silk base layer. Add a midweight knit when the forecast dips. Finish with an insulated shell for wind and snow. The slim outline helps each layer sit cleanly. Movement remains easy while bulk stays low.
The four way stretch thermals move with every step. Seams sit smooth and tidy under sweaters and denim. The silk knit returns to shape after wear. It feels refined during long drives, airport lines, and busy schedules.
Use this cold weather layering set for ski weekends and alpine towns. Moisture wicking silk helps during lifts, walks, and lodge breaks. After activity, the fabric airs quickly. Pack a spare set for multi-day trips and easy rotation.
Choose black for a minimal, seamless look. Pick neutrals for travel capsules and carry-on kits. Seasonal tones add interest under vests and cardigans. The top pairs with fleeces, quilted pieces, and softshells. The bottoms fit smoothly beneath jeans, joggers, and snow pants.
This lightweight winter base layer folds small and packs flat. It rinses easily in hotel sinks and dries fast on hangers. Keep one women silk thermal underwear set in your weekender for sudden cold snaps. The smooth knit resists bulk in compact luggage.
Select your usual size for a close, layer-ready outline. Size up for a roomier lounge feel. When between sizes, consider use. Choose a closer fit for streamlined winter outfits. Choose a calm fit for quiet evenings in.
Make winter dressing simple with this mulberry silk thermal set. It balances warmth, moisture control, and a sleek outline. The pieces layer cleanly under everyday clothes and pack easily for trips. From commutes to mountain towns, this base layer meets the season with calm, consistent comfort.
Size Chart (Inches):
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Premium silk thermals designed for ultimate comfort and warmth
Crafted from the highest grade mulberry silk for unmatched softness and luxury. This premium natural fiber is hypoallergenic, gentle on sensitive skin, and provides superior temperature regulation compared to synthetic materials.
Natural silk fibers create tiny air pockets that trap body heat while maintaining a sleek, lightweight profile. Stay toasty warm in freezing temperatures without the bulky layers that restrict movement or show under clothing.
Silk naturally absorbs up to 30% of its weight in moisture while keeping you dry and comfortable. The breathable fabric prevents overheating and eliminates that clammy feeling common with synthetic thermals.
Form-fitting cut hugs your curves without constricting, creating a smooth base layer that disappears under any outfit. Perfect for layering under work attire, casual wear, or ski gear without adding visible bulk.
Silk contains natural proteins that resist dust mites, mold, and allergens, making it ideal for sensitive skin. Unlike wool or synthetic fabrics, silk won't irritate or cause itching, even during extended wear.
Premium mulberry silk is incredibly durable when properly cared for, maintaining its softness and insulating properties season after season. These thermals are an investment in comfort that will serve you well for years to come.
Versatile thermal underwear for all your cold-weather needs
Ideal for skiing, snowboarding, ice skating, or winter hiking where you need serious warmth without restrictive bulk. The moisture-wicking properties keep you dry and comfortable during high-intensity activities in freezing temperatures.
Stay warm during your commute and in cold offices while maintaining a polished, professional appearance. The slim fit layers invisibly under dress pants, skirts, and blouses without creating visible lines or adding bulk to your silhouette.
Perfect for lounging around the house on chilly days or sleeping in cold bedrooms. The luxurious silk feels incredibly soft against your skin, providing all-day comfort whether you are working from home or relaxing on the couch.
Essential for winter vacations, cold-weather travel, or visiting chilly destinations where you need reliable warmth in a compact package. These thermals pack small but deliver big on comfort, making them perfect for suitcase packing.
Join 847+ satisfied customers
These silk thermals are absolutely amazing! I was skeptical about silk being warm enough, but they keep me toasty on my morning walks even in below-freezing temps. Plus they are so soft and comfortable I forget I am wearing them. Worth every penny!
Finally found thermal underwear that does not make me look bulky under my work clothes! These fit perfectly under my dress pants and blouses, and I stay warm all day in our freezing office. The silk feels luxurious and has held up beautifully after multiple washes.
I have sensitive skin and wool thermals always made me itch like crazy. These mulberry silk long johns are a game-changer — no irritation whatsoever, and they are actually warmer than my old wool ones. I bought three sets and wear them every day all winter!
Perfect for my ski trips! They layer beautifully under my ski pants and jacket, keep me warm on the slopes, and the moisture-wicking really works — no more clammy feeling after a long day skiing. These are now a permanent part of my winter gear.
The quality of these thermals is outstanding. The silk is so smooth and soft, and they have kept their shape and softness even after a season of regular wear. They are definitely an investment, but the comfort and warmth make them worth it.
I wear these under everything all winter long — work clothes, casual outfits, even pajamas. They are incredibly versatile and comfortable. My only regret is not buying them sooner. Best thermal underwear I have ever owned, hands down!
Do not miss out on the ultimate thermal underwear experience. Limited stock available at this special price — order your mulberry silk thermals today and feel the difference premium quality makes!
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