Seamless Elastic Thermal Inner Wear
Seamless Elastic Thermal Inner Wear
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- FREE International Delivery
When Will My Order Arrive?
When Will My Order Arrive?
Estimated delivery times:
🇺🇸 United States: 6–12 business days
🇬🇧 United Kingdom: 6–13 business days
🇦🇺 Australia: 7–14 business days
🇨🇦 Canada: 7–15 business days
🌍 Rest of World: 10–20 business days
Refund, Return, Exchange, And Cancellation Info
Refund, Return, Exchange, And Cancellation Info
💫 30-Day Returns & Refunds
Enjoy a hassle-free return process at MerryWonders.com.
🛑 Cancellation Policy
Changed your mind? You can cancel within 24 hours of placing your order for a full refund.
📧 How to Cancel: Email us at merrywonders@proton.me for quick assistance.
🔁 Returns & Exchanges
Start your return or exchange anytime through our Self-Serve Return Section on our website.
⚙️ Processing Time
All return and cancellation requests are processed within 1–3 business days — always fee-free.
💳 Refund Timing
Refunds typically appear on your original payment method within 3–7 business days after processing.
💬 Need Help?
We’re here for you!
Contact us anytime at merrywonders@proton.me for friendly, fast support.
A pair of self- heating breathable underwear designed to keep you warm in the cold season. Made with the latest heat-trapping nano weave that regulates body temperature at 37 degrees. It is 65% warmer than usual inner wear.

Ultra-thin and comfortable to wear under your favorite outfits. Super elastic and fits well on the body for pressure free movements. Weatherproof; keeping your body warm at all times.

FEATURES
- Thermal Wear at 37 degrees: Made with the latest heat-trapping nano weave that regulates body temperature keeping the body warm at 37 degrees even during the cold season.
- Warmer than Usual: It is 65% warmer than regular inner wear, more effective and protective.

- Seamless: It perfectly fits the body, not bumpy; keep you looking good and feeling good.


- Ultra Elastic: Made from soft elastic materials keeping you comfortable for pressure free movements.

- Perfect for Traveling : A perfect partner while traveling in cold places; lightweight, easy to wear and carry.
- Under Your Favorite Outfits: You can wear it under your favorite outfits such as coats, long sleeves, sweatshirts, and more!

SPECIFICATIONS
- Weight: 0.22 kg
- Female: Burgundy, Beige, Black, Red
- Male: Navy, Black
- Size: Free Size.Women's thermal underwear is suitable for women weighing 88-165lb, and men's thermal underwear is suitable for men weighing 110-198lb.
PACKAGE
- 1 pair of Thermal Underwear (Top & Bottom)
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