18 air vents bring cool air in through the front, allowing it to pass over your head and then flushes warm air out of the rear ports Adjustable and removable visor and visor plugs make this bike helmet perfect for on-road or off-road use In-mold construction fuses the helmet"s outer shell with the impact-absorbing line Well-ventilated and comfortable, a labyrinth of optimized internal channels allow the bike helmet to breathe like no other The strape is adjustable to most fit you It is made of high quality material, you might even forget that you"re wearing anything at all Stay safe while cycling with the bike helmet It"s the perfect mix for riding roads, trails and everything in between Lightweight cycling helmet that"s ideal for casual or technical use The riding helmet is the perfect choice for riding downtown, up a technical climb, and everything in between A good accessory for your bike bicycle Color: Red Size: Approx. 275 x 215 x 110mm(L*W*H) Weight: 300g