48-51cm An integrated helmet and goggle system to keep kids and parents focused on the mountain. The kids' Anon Define Helmet simplifies the experience for kids and parents alike by integrating goggles into the helmet so nothing falls off or gets lost. The kid-proof design includes a hardshell exterior for everyday durability. A 180° BOA® Fit System offers quick, micro-adjustable fit with the turn of a dial, and fixed vents keep the air moving for fog-free goggles and all-day comfort. Our strapper-keeper technology incorporates the goggle right into the helmet for a perfect fit around small faces. Strapper-Keeper Strapper-Keeper technology incorporates the goggles right into the helmet for a simple all-in-one design that keeps the goggles strap aligned for perfect on-the-face placement. Endura® Shell Endura® shell construction features an injection-molded ABS exterior for long-lasting durability and ding-resistant strength. Passive Ventilation Passive ventilation channels integrated into the helmet draw fresh air in the front and pull moisture out the back. 360° BOA® Fit System Youth 360° BOA® Fit System integrates a fit dial directly into the helmet and provides for micro adjustments in a complete halo around the wearer's head. Fidlock® Fidlock® snap helmet buckle uses magnets to allow you to open and close the buckle with one hand, even when wearing gloves.