What to wear to Qinghai-Gansu Great Ring Road in July?

Robes, pants. Qinghai Gansu has a high altitude, the temperature is cool, and the temperature difference between morning and evening is large, so it is necessary to wear long clothes and trousers. Ladies in scenic spots can wear skirts to take pictures; It is best to bring a thin coat (jacket, windbreaker, etc.). ) it is convenient to put on and take off to cope with weather changes. The Qinghai-Gansu Great Ring Road, as its name implies, is a route that runs through Qinghai and Gansu provinces.