Cango Kids Multi-Sports 3D Dinosaur Helmets, Unisex Constructed and tested to EN1078-1997 + A1 - 2005 standards, CE Standard Ultralight, Suitable for head size 49 - 58 cm Shock-absorbing EPS inner shell full protects the noggin Aerodynamic cooling vents keep your bucket fresh Easy to remove the cleaning, Nylon straps adjust for a great fit