Meteor bicycle helmet Gruver M 55-58 cm white-green 24801 The Meteor helmet guarantees maximum head protection while riding a bike, scooter, rollers, roller skates , quad or skateboard. Interesting design with reflective details. Light, ergonomic design.  Shell made of highly stretchy polystyrene EPS protects against injuries absorbing all the stresses that may be created during a fall. Detachable visor. The helmet has adjusted size using a multi-stage ring (closing Fit Size-headlock ) and special buckles. The elements of the welts are detachable, so they can be washed or dried. The continuous air flow provides 23 ventilation holes with the system Air Flow. Helmet with countless microscopic air pores. Technical data: · Outer shell material: PVC· Inner absorbent 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 fluid ring circumference adjustment;  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 – soft, pleasant touch covers, which does not catch on the hair, prevents the growth of bacteria and reduces the unpleasant odor caused through sweat System Air Flow- constant circulation of air around the head and heat dissipation · System Fly Net - mesh located in the fronts ventilation holes, protects the head from insect bites when driving in warm and humid conditions Quick-Release System - buckles fastening removable elements the linings --it's easier to keep the sweat-absorbing elements when they can be washed and dried efficiently