I/O Bio Merino just gets it. What is it? In this case, it is the philosophy that not everyone spends all their time either outside or inside and that intelligent apparel needs to take the transition between the two into consideration. While many of I/O Bio's customers may live in harsh mountain towns, others may have to deal with the severe wind chills and weather shifts experienced in urban environments. Either way, high performance is necessary for survival. I/O has searched the world for the finest merino fibers, found them, and used them as a base for their advanced fabrication methods to bring you the smartest, natural protection available.