Tibetans live on the Qinghai-Tibet Plateau with high altitude and large temperature difference between day and night. During the day, the weather often changes. Tibetan people often describe climate change as "four seasons in one mountain, but different days in ten miles". Tibetan robe is made of good material and has strong cold-proof effect. The robe sleeves are spacious. When the temperature rises, one sleeve can be easily removed to adjust the temperature, which is also beneficial to life and travel. Tibetan robe has a big waist, which can be worn during the day to keep warm and cold, and can make the bed and sleep with clothes at night. In addition, it is beneficial to labor production. Tibetans graze, work and farm, and the weather is changeable. When it is necessary to adjust the temperature, just take off your sleeves. It is also convenient to take off your sleeves and tie them around your waist and bend over to work. This gradually formed a habit that Tibetans usually wear only one sleeve when the temperature is normal.

To be exact, Tibetan robes are not sleeveless on one side, but people like to tie their sleeves in their belts instead of wearing their right sleeves.