Which is better to keep warm, volcanic rock or infrared underwear?

Everything is fine.

1, volcanic rocks and infrared rays are warm and soft, suitable for wearing.

2. Volcanic rock adopts the patented manufacturing technology of dual-energy powder with core-shell structure, and infrared ray adopts negative ion refreshing technology.

3. Both of them aim at regulating and improving the body function, and have no toxic and side effects on human body, thus achieving the purpose of health care.