A New Era of Scientific Warm-keeping: Delong's Journey of Technological Innovation of Self-heating Underwear
With the advancement of technology, the traditional way of keeping warm in winter is being subverted. This self-heating V-neck thermal underwear launched by Delong has created a new thermal experience through the combination of advanced materials and unique technology.

The underwear uses the friction between fibers to generate heat, so as to achieve the effect of continuous heat preservation, and can maintain a comfortable body temperature environment without external heating devices.
Say goodbye to bloated times: how seamless design redefines the winter wearing experience
Many people's impression of winter clothes is always inseparable from thick clothes and bulky appearance. The seamless design of the company has completely changed this situation, making the thermal underwear no longer seem abrupt or tight.
Its seamless cut not only fits the body shape, but also greatly reduces the discomfort that traditional stitching may cause. Whether in formal occasions or leisure time, you can take the cold weather calmly while maintaining an elegant image.
The beauty of V-neck art: exploring how classic tailoring shows men's elegance
V-neck as one of the classic clothing elements, has been highly respected. It can not only modify the neck lines, but also lengthen the overall body ratio, giving people a more upright and confident feeling.
Delong integrates this aesthetic concept into every detail of the product and carefully creates an ideal choice for modern gentlemen-that is, a highly adaptive V-neck opening design that guarantees sufficient privacy and does not lose style.
the secret of constant temperature 37.1 degrees: revealing the principle of black technology behind fast heating technology
maybe you will be curious, what kind of magic can keep this underwear at the most suitable temperature for human body all the time? the answer lies in the support of cutting-edge scientific research achievements.
When the outside temperature drops, the special yarn will automatically absorb the moisture in the air and convert it into energy to release it to form a stable low temperature area (approximately equal to the range required for the normal operation of the human core surface), thus realizing the real "constant temperature" control mechanism.
Warm care from the inside to the outside: how to achieve all-round protection from the cold in autumn and winter two-piece set
In order to provide users with a more comprehensive service plan, this series has specially launched a complete suit version including tops and long Johns. The two can be used together to cover the main parts of the body to the greatest extent from the cold.

whether it is daily commuting or outdoor sports scenes, it performs well, and it is truly safe to accompany around anytime and anywhere.
Shopping Guide: Teach you to choose the most suitable thermal underwear size and style
Can you be overwhelmed by the wide variety of options on the market? Don't worry! We 've put together some simple tips to help you quickly locate your favorite target:
- -confirm accurate body data such as chest circumference, waist-to-hip ratio and other basic parameters, and then compare and screen them against the detailed specification table provided by the government;
- -The final decision is made after considering factors such as personal preferences and actual use requirements, such as whether special protection performance or specific color style preference are required.
Real User Voice: See Why They Love This High-Tech Warm Gear
Many consumers who have already purchased this product have given high praise. "After putting it on, I obviously feel that the whole chest and abdomen have become warm", "the workmanship is fine and there is no itchiness and no deformation after washing" and such positive feedback emerges one after another.
It is by virtue of excellent quality performance and caring service attitude has won the love and support of many loyal fans.
