VINQLIQ Premium Quality Airflow&ensp; Adult Mountain Road Cycling Bike Helmet Ultralight Stable Breathable Specialized for Mens Womens Safety Protection SAFE AND DURABLE - Made of tough and durable PVC & PC shell and high quality EPS foam layer molded through the "in-mould" technology which makes a great performance to absorb the impact and protect the head during crash. Imbedded with carbon fiber to decrease the weight of the helmet and make it more durable. EXCELLENT VENTILATION - directly influenced by the size of the air vents located on the front, which allow air to pass through easily. 23 flow vents to keep you cool and provide excellent AIRFLOW from the front to the back. Now you can comfortably ride even in the sun, on a hot day. HUMANIZED COMFORTABLE DESIGN - Detachable Visor to Provide Extra Shade in Sunny Conditions and protect your eyes. And detachable lining pads with mosquito net are sweat absorbent and deodorant to make your more comfortable and easy to clean. ROTARY ADJUSTMENT SYSTEM - The rotary adjustment system is easy to adjust the helmet to fit your head by revolving the button right or left. This system also makes the helmet tight on your head and keeps you safer. BUY WITH CONFIDENCE - We stand behind our products and provide a 30-daymoney-backguaranteeforanyreasonand 12-monthwarrantyforquality-relatedissues.