Its feature is thermal, light, soft, safe and not sensitive, all washable, most can be dry cleaned, and good resilience after washing, no shrinkage, insulation performance does not decline. ZHIZHEN thermal materials can make the fibers retain more air, retain more heat. And in the same size space, it can be filled with more fibers, so it can reflect the body's thermal radiation more effectively. At the same time, it absorbs only 1% of its own weight, so it can keep warm even in humid environments. We use special ultrasonic embossing process to form “Air capsule” to lock in heat.