Nutcase sets the standard for fun when it comes to kid&&';;s helmets. The all-new Little Nutty raises the bar again featuring industry safety leader MIPS in addition to being filled with protective Crumple Zone EPS foam. Now offered in two sizes, the Little Nutty ensures ultimate fit and comfort for kids ages 3 and up. With 21 new designs and 10 contoured air vents, we not only want kiddos to look cool, we want them to remain cool. FEATURES: Durable Injection molded ABS shell with engineered Crumple Zone EPS protective foam featuring MIPS Safety Protection 10 contoured vents for ultimate cooling Snap and go, No-Pinch Fidlock Magnetic closure Heat sealed, 3-piece pad set / Dial adjustable cradle ensures safety, individual fit and comfort, 360 degree reflectivity via logos, reflective straps and fit system Toddler ( 48cm - 52cm ), Youth ( 52cm - 56 cm ) CPSC 16 CFR 1203 and ASTM F1510