Nutcase sets the standard for fun when it comes to children's helmets. The brand new Little Nutty bike helmet for children at kindermaXX raises the bar even higher, because it is not only filled with EPS foam with crumple zone, but also with MIPS, the leading safety system in the industry. The Little Nutty children's helmet is now available in two sizes and offers ultimate fit and comfort for children from 3 years on. With 11 contoured vents, we not only want kids to look cool, we want them to stay cool.