Meteor bicycle helmet Ovlo M 55-58 cm white 16860 The Meteor helmet will guarantee maximum head protection while riding a bicycle, scooter, rollers, roller skates, quad or skateboard. Design with reflective details. Light, ergonomic design.  Shell made of highly stretchy polystyrene EPS protects against injuries absorbing all stresses that may be generated during a fall. Detachable visor. The helmet gained size adjustment using a multi-stage ring (closing Fit Size-headlock) and special buckles. Lining elements are detachable, so they can be washed or dried. Constant air flow provides 23 ventilation holes with Air Flow system . Helmet with innumerable microscopic air pores. Technical data: · Outer shell material: PVC Inner absorbing material: EPS Certificate - product complies with the requirements of the European standard EN 1078· Size M: adjustment 55-58 cm· System Fit Size - headlock multi-stage ring of smooth regulation circumference ;  using one hand you can fit the helmet to your head without problems using a small knob located in the back part of the helmet· Antibacterial interior &ndash ; soft, pleasant touch lining, which does not catch on the hair, prevents the growth of bacteria and reduces the unpleasant odor caused by sweat· ; System Air Flow- constant circulation of air around the head and heat dissipation · System Fly Net - mesh located in the front ventilation holes , protects the head from insect bites while driving in warm and humid conditions Quick-Release system - buckles quick fastening Removable components lining - it's easier to keep the sweat-absorbing elements when they can be washed and dried efficiently