The MET Hooray is a new angle on the children's helmet that is packed with features that enhance your children's safety and give you peace of mind that you have done your best to protect them. improved EPS construction makes the helmet safer extended head coverage and more comfortable wearing design clamping buckles with anti-opening lock ergonomic design for use with a child seat Bimbi safety system for protection of the fontanelle integrated helmet label for increased safety insect net in the front air vents size XS (46-52cm), S (52-56) weight 230 g (size S) XS)