Silver has 10,000 times heat conductivity comparered to normal textile fibers. It also provises a good reflection of far infrared rays which the sun and human bodies emit.
Utlizing these two properties (high heat conductivity & good reflection of infrared rays), you can expect the performance of Hot & Cool.

If AGposs is put into a fabric for outer garment or like that, AGposs reflects the far infrared rays from the sun and prevent the ryas reaching the human body. So the wearer feels cool.