Light heat storage + hollow thermal insulation functional fabric

? photothermal storage black technology: Integrating photothermal active particles, it acts like an "energy catcher", efficiently capturing sunlight, infrared rays, and even the heat emitted by the human body can be "recovered" and converted. Youdaoplaceholder1 continuously provides heat, keeping you warm even in low-temperature environments ~
? Hollow insulation: 37%+ ultra-high hollow degree (outperforming the industry average of 30%!) More still air is "locked" in the fibers, providing heat insulation and breathability. Its density is even lower than that of water! Wear it for sports or outdoors. It's so light that it feels like you're not wearing it at all. It's both comfortable and warm
? Authoritative certification: Confirmed by China Textile Testing! The light heat storage performance, far-infrared emissivity and radiation temperature rise all meet the standards. The data is visible, making the warmth more reassuring

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