Features & Benefits
- X-temp technology dries faster as your body heat rises
- Wicking for moisture management
- Stretch fabrication
- Flat lock seams resist against chafing and irritation
- Brushed inside for softness
- Home Page /
- Fashion /
- Boys /
- Clothing /
- Underwear /
- Thermal Underwear /
- Bottoms /
- Duofold Flex Weight Thermal Pant Underwear
0 ratings
Item #:
20364278
Duofold Flex Weight Thermal Pant Underwear
90% of respondents would recommend this to a friend
Item #:
20364278
0 ratings
Write a review
Out of stock
Imported from USA store
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Our Top Logistics Partners
Duofold provides the perfect base layer, no matter how cold.
Fast
Shipping
Free
Return*
Secure Packaging
100% Original Products
PCI DSS Compliance
ISO 27001 Certified
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
Thermal Insulation
Crafted with advanced thermal insulation technology, these pants trap heat efficiently, ensuring warmth during cold weather activities without bulk.
Flexible Fit
Featuring a flexible design, these thermal pants provide a snug fit that allows freedom of movement, perfect for outdoor sports and casual wear alike.
Moisture-Wicking
Engineered with moisture-wicking fabric, these pants efficiently draw sweat away from the skin, keeping you dry and comfortable during intense activities.
Product Details
| Package Dimensions | 0.39 x 0.39 x 0.39 inches (1 x 1 x 1 cm); 1 pounds (450 grams) |
| Item model number | KFX6 |
| Department | unisex-child |
| Date First Available | October 17, 2017 |
| Manufacturer | Duofold |
| Color | Black |
| Style Name | Flex Weight Thermal Pant |
| Rise Style | High Rise |
| Leg Style | Boot Cut |
| Fit Type | Comfort |
| Apparel Occasion and Lifestyle | Athletic |
| Pattern Style | Solid |
| Pants Form Type | Compression |
| Seasons | Fall |
| Sport Type | General Athletic Wear |
| Apparel Closure Type | Pull On |
| Front Pleat Type | Flat Front |
| Pattern | Solid |
| character | Sports |
| Brand Name | Duofold |
| Age Range Description | Big Kid |
| Model Name | Flex Weight Thermal Pant |
| Style Number | KFX6 |
| UPC | 617914372354 |
| Import Designation | Imported |
| Global Trade Identification Number | 00617914372354 |
| Unit Count | 1 Count |
| Number of Items | 1 |
| Item Type Name | Base Layer Bottom |
| Item Weight | 2.08 ounces (58.97 grams) |
| Manufacturer Part Number | KFX6-BKK-L |
| Item Length Description | Ankle Length |
| Waist Size | 38 inches (96.5 cm) |
| Garment Size Country | United States |
| Fit to Size Sentiment | Relaxed |
| Sleeve Length Description | Sleeveless |
| Material Type | Polyester |
| Fabric Type | 91% Polyester, 9% Spandex |
| Product Care Instructions | Machine Wash |
| Fabric Stretchability | Stretchable |
| Apparel Fabric Weight Class | Medium Weight |
| Apparel Fabric Stretch | Medium Stretch |
| Fabric type | 91% Polyester, 9% Spandex |
| Care instructions | Machine Wash |
| Origin | Imported |
| Closure type | Pull On |
Who Should Buy?
-
Cold Weather Activities
Ideal for outdoor enthusiasts participating in skiing, snowboarding, or hiking in cold climates requiring extra warmth.
-
Layering for Warmth
Perfect for layering under pants during winter months, providing insulation without bulk.
-
Casual Comfort
Great choice for individuals seeking comfortable, lightweight thermal underwear for lounging at home in chill weather.
-
Extreme Heat
Not suitable for extremely hot weather, as it may cause overheating and discomfort due to its thermal properties.
Product Description
Duofold Flex Weight Thermal Pant Underwear
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is X-temp technology?
Answer: X-temp technology is a feature that allows the fabric to dry faster as your body heat increases. -
Question:
Does it provide moisture management?
Answer: Yes, it wicks away moisture to keep you dry and comfortable. -
Question:
What is the advantage of flat lock seams?
Answer: Flat lock seams resist against chafing and irritation, ensuring a more comfortable experience.
Duofold Bottoms KFX6 Editorial Review
The Duofold Kids' Big Girls' Flex Weight Thermal Pant seems to be a popular choice among customers who are looking for a comfortable and soft layering option for their children. The pants are thin, yet not see-through, making them ideal for wearing under school uniform dress pants. They also layer nicely without bunching up or sliding down. The pants are particularly favored by children who tend to get cold easily in the winter, as they provide an extra layer of warmth. However, some customers have noted that the pants are longer than expected and needed to be trimmed. Overall, the Duofold Kids' Big Girls' Flex Weight Thermal Pant is well-received by customers, with positive comments about their softness and comfort. They are recommended for wearing under clothing in cold weather, but may not be suitable for wearing alone due to their thinness.
Customer Reviews & Ratings
1 customers ratings
-
5 Star
100%
-
4 Star
0%
-
3 Star
0%
-
2 Star
0%
-
1 Star
0%
Review this product
Share your thoughts with other customers
Pros
- Soft and comfortable
- Thin but not see-through
- Layers nicely without bunching up or sliding down
Cons
- Pants are longer than expected and may need to be trimmed
Platform Trust & Buyer Confidence
JK
Jasmin
Verified buyer
“Great products and very good service: very easy and very fast international delivery.”
9 September 2026 · via Trustpilot
AG
Anke
Verified buyer
“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”
10 September 2026 · via Trustpilot
H
Hazel
Verified buyer
“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”
10 September 2026 · via Trustpilot
O
Opaleye
Verified buyer
“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”
11 September 2026 · via Trustpilot
AC
Adele
Verified buyer
“Easy to find and order what you want on the website. Delivery is quick to the UK”
8 September 2026 · via Trustpilot
Secure Checkout
Global Delivery
Easy Returns
Genuine Products
Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
- Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.
Currently unavailable.
We don't know when or if this item will be back in stock.
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
Our Top Logistics Partners
Fastest cross-border delivery
Ubuy Assurance
Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.