Product Size: M is suitable for 54 - 57 cm / 21.2 - 22.4 inch head circumference L is suitable for 57 - 62 cm / 22.4 - 24.4 inch head circumference Product information: Brand: inbike Name: MX-3 Helmet with Goggles in Magnetic Type Material: pc shell; EPS foam inner shell Holes:25 Weight: about 230g Colors: four colors for nyou to choose Size: M - suitable for head circumference: 54-57CM/21.2-22.4inch L -suitable for head circumference:57-60cm/23.2-24.4inch Grey lens in magnet mode Windproof and anti-dust PC lens is attached by magnet. It will automatically fall off and protect the eyes when you fall down. If you have an impact the lens will fall off directly Three Shapes Switch Freely Quick release goggles, three shapes -Fast speed mode Windproof and anti-dust for long distance cycling -Slow speed mode Convenient to carry for short distance cycling -Leisure mode One-integrated shell for daily cycling Breathable Reduce Wind Resistance 25 venting holes keep breathable and reduce the wind resistance One-integrated PC Shell The combination of PC shell and the body; not easy to be broken; better protection to the head Widened Goggles For the Short-sighted People Can wear the myopia glasses and helmet at the same time Streamlined design Shock-absorbing High-Density EPS One-integrated shell high-density EPS shell eases the impact Integrated high-density EPS foam reduces the impact and protects you effectively High-quality EPS: high tensity; strong and better protection Bad EPS: low density, fragile, tough to deal with the second hit Removable Comfortable Inner Pad Washable inner pad is connected by hook and loop fastener Light weight helmet High resistance to impact Adjustable Head Circumference Adjust the head circumference; fitter and safer M is suitable for 54 - 57 cm / 21.2 - 22.4 inch head circumference L is suitable for 57 - 62 cm / 22.4 - 24.4 inch head circumference Chin pad adjustable; detachable; cleaner Comfortable mesh belt adjust the belt while cycling Color show Ways to wear a helmet PLEASE NOTE: DELIVERY WITHIN 2-8 WEEKS AS MOST OF THE ITEMS ARE COMING FROM ABROAD. IF FOR ANY REASON I CANNOT SHIP TO YOUR LOCATION, I WILL CANCEL WITHIN 24 HOURS.