神奇活力紗係以聚酯改質技術，運用良好分散遠紅外線吸收微粒子，可吸收外界能量進而釋放出遠紅外線波長，賦予人造纖維優異的蓄熱功能，為長效型遠紅外線纖維，不會因水洗而喪失其機能性。經實際測試結果證明，神奇活力紗之遠紅外線放射率、遠紅外線溫升值及特性保溫值(CLO)皆優於一般聚酯纖維，具有較佳的保溫性質。實際人體測試也證明可加速人體的血流速及血流量，穿著於人體有促進血液循環的保健效果。白度經測試與一般聚酯纖維相同，不同於坊間遠紅外線纖維有偏黃的現象。

Nano particle is well dispersed in SHIN HOT to provide fabrics good far infrared ray release ability. Far infrared ray, a type of energy on the infrared spectrum, benefits a lot. Using SHIN HOT with such energy, you could keep warm though kind of natural heat circulation from your body to the Far infrared yarn and back to your skin. This yarn is a good choice for maintaining your body temperature, having better sleeping, improving your body recovery and reducing inflammation.
Compare to general grade PET, same unit weight of fabrics made by SHIN HOT has 30% higher heat storage, insulation efficiency and of course with superior washing stability. Moreover, the DPF can be lower than one.