100% Mulberry Silk Long Thermal Underwear Set for Women

15% off on orders $200+ | Use Code: MDAY15
20% off on orders $400+ | Use Code: MDAY20
25% off on orders $500+ | Use Code: MDAY25

Free Shipping for Order Over $55


Daisysilk’s warm suit set will make lazy Sunday mornings a little bit more luxurious. Cut from pure mulberry silk, The relaxed fit, and an elasticated waistband ensure the trousers won't feel restrictive.

Basic 100% Mulberry Silk Long Thermal Underwear Set for Women

• Fabric: grade 6A mulberry silk 
• Neckline: traditional round collar
• Sleeve type: long sleeves
 Closure: pullover
• Matching pants: an elasticated waistband for a flexible fit
• OEKO-TEX Standard 100

Shipping & Return

- Free Shipping On Orders Over $55

- 5-10 Business Days US Shipping

- 60-Day Easy Returns

Learn More>

Size & Fit

- Do not use chlorine bleach to clean silk

- Avoid drying silk in direct sunlight

- Hand washing silk is our recommended mode of cleaning silk

- If you do wish to machine wash silk, please use Delicate Cycle and mild detergent

Learn More>

Delightful surprises come in elegant packages. Our exquisite gift box adds a touch of luxury to any occasion.


Unlike most clothing in our wardrobe, when it comes to underwear that is easy and comfortable to wear all day long, FABRIC should be the most important factor when deciding on the best underwear right after fit and design. Choosing natural materials over synthetics because these more organic options tend to be naturally antimicrobial, meaning they can kill or inhibit microorganisms. So instead of nylon or spandex, natural cotton and silk are the two most popular choices. Each is valued for its unique properties.

Cotton underwear offers a soft, skin-friendly feel that's gentle on your skin. It's breathable and wicks away moisture, providing excellent comfort. The downside is that while it's great at absorbing sweat, it tends to dry slowly. For those who tend to sweat, prolonged contact with damp fabric can cause problems such as redness, swelling and itching. Cotton underwear also becomes very stiff after being washed and often needs to be rubbed with your hands before it becomes loose. It is recommended that a pair of cotton underwear be used no more than 25 times.

In addition to the inherent benefits of softness, smoothness and comfort, silk is distinguished from cotton by its remarkable moisture absorbency and breathability, which helps to protect and hydrate the skin. Silk is 1.5 times more effective than cotton at moisture absorption and release, which it does quickly in humid conditions to reduce the potential for bacterial growth.

DAISYSILK crafts only exquisite 6A-grade pure mulberry silk, certified with MADE IN GREEN by OEKO-TEX®. This certification ensures that all our products are manufactured in environmentally and socially responsible facilities, without the use of harmful chemicals. We specialize in offering 100% mulberry silk underwear. The series includes thermal underwear set, panties, bras, camisoles and socks, all of which are designed to provide you with comprehensive care.


When it comes to comfortable all-day underwear, consider fabric as the key factor, just after fit and design. Opt for natural materials like cotton and silk over synthetics due to their natural antimicrobial properties. Cotton is soft, gentle on the skin, and breathable but can be slow to dry, which may lead to discomfort for those who sweat. On the other hand, silk is known for its remarkable moisture absorption and breathability, preventing bacterial growth.

DAISYSILK specializes in eco-friendly 6A-grade pure mulberry silk products, certified with MADE IN GREEN by OEKO-TEX® for socially and environmentally responsible manufacturing. Shop our silk underwear series includes thermal underwear set, panties, bras, camisoles and socks, all of which are designed to provide you with comprehensive care.


Silk thermals are loved for their incredibly lightweight, breathable insulation and deliciously soft feel.

IS IT COMFORTABLE? Yep! Silk is the second-skin base layer you won't want to take off! It's ultra-soft and breathable, perfect for wearing directly against your skin, especially for those who are sensitive to the texture of fabrics. Because they’re hypoallergenic and antimicrobial, they won’t be itchy or irritating to your skin, won’t smell, and can be worn over and over.
IS IT WARM? Silk long johns provide warmth due to its natural insulating properties, which trap heat close to the body. It is both cozy and breathable, making it a comfortable choice for cold weather, helping you stay warm and dry.
HOW-TO TIPS Silk thermal underwear is the thinnest and lightest thermal fabric, making it ideal for temperatures between 0°C (32°F) and 15°C (59°F) as a base layer. You'll barely feel them under your clothes. They fit perfectly, keeping you warm but not too warm, and are easy to hand wash and quick to dry. Highly recommended for daily wear indoors, paired with silk shirts or cashmere sweaters, or for travelers in cold climates.

Customer Reviews

Based on 10 reviews

The fabric is extremely thin, the pants are not long enough and act almost as high waters, and will rise up, i wear them inside and I still get cold. But they are fast at moisture wicking and comfy. I would’ve returned, but I had a lot going on and got too lazy to make it to the post office to mail it to them within 10 days.

Elizabeth R.

Love Love, love silky all over I sleep in them, I wear them all day long 💕

Ross L.


Ross L.


Felicia M.

The fabric is soft and fits perfectly. The service is excellent. Thank you.

Lenore A.

I plan to wear them as a base layer on vacation in a cooler climate.

Carlene B.

The material is great, feels good on your body, and it's a perfect fit. True to size. I loved it so much I ordered another pair. They are thin but really warm, and they easily fit under your clothes.

Ruth B.

Keeps me warm!

Crystal M.

It does what it is supposed to do. I wore this under my clothes, and it helped to keep me warm.

Jamie S.

The color is so pretty, and they are incredibly comfortable and lightweight. I live in Florida, and we have the air conditioning on all the time. I wear these to bed and absolutely love how they feel against my skin.