Extreme backwheel riding of Ines 伊泉 on FIXED GEAR

A RESPRO anti-pollution mask.That is for healthier breathing on polluted days.

ah i see

My guess is Ines is wearing a bandana over her nose and mouth to filter the dirty air in Beijing. The air quality is horrible in that city. That's why China shut down the industry in Beijing a month prior to the Olympics to make the atmosphere presentable to the visiting world. Lung cancer is very high in Beijing.