Perfect Protection----The mask provides excellent filtration against most type of pollution, an urban cyclist is likely to encounter included pollens, dusts, vehicle fumes and bacteria Shock-proof and Good Protection of Nose----Exquisite fixation part at bridge of nose for stable support, not break easily, good protection for nose Easy to Breathe-----Including 2 one way valves to allow easier exhalation of heat, water vapour and Carbon Dioxide, suitable for glass wearers. Design: ergonomical to human faces, covering area below bridge of nose, non-slippery Easy to Wear----Magic stick belt to fasten the mask, convenient and practical How to use: Put the mask between the nose and chin. The back of the mask can be fixed with a Velcro. The satin aluminum bridge on the bridge of the nose can be installed and adjustable according to your face and nose. Check if it is appropriate: cover your face with your hands,then breath hard and feel if there is air flow. Make sure you are comfortable after wearing this mask by adjusting the back of the Velcro. Note: - Please kindly know that measurement of size above is for your reference, there might be slight allowable discrepancy. - The color of the item might appear slightly different because of different screen display settings. -------------------------------------------------------- Package Including 1 x dust mask

Perfect Protection----The mask provides excellent filtration against most type of pollution, an urban cyclist is likely to encounter included pollens, dusts, vehicle fumes and bacteria Shock-proof and Good Protection of Nose----Exquisite fixation part at bridge of nose for stable support, not break easily, good protection for nose Easy to Breathe-----Including 2 one way valves to allow easier exhalation of heat, water vapour and Carbon Dioxide, suitable for glass wearers. Design: ergonomical to human faces, covering area below bridge of nose, non-slipper