The company NanoTrade is testing its products nanosilver® and nanosilver® Thermo with the Czech expedition in Himalaya. This expedition went in August, 27-th, 2010 to attempt the world´s first downhill from the top of Co Oyu (Qowowuyag, Turquoise Goddess) from a height of 8201 m asl to the first altitude camp at an altitude of 5800 m asl. Expedition members who are enrolled in our nanosilver® Test Team were equipped with nanosilver® knee socks and underpants and jumpers nanosilver® Thermo. These products will be tested in harsh climatic conditions, both during the entire stay, especially during the downhill. After the return of the expedition all valuable information will be used for preparation of a new collection for 2011.