MIPS Brain Protection System. Fidlock magnetic buckle offers quick, secure fit that's easy for kids. Intuitive, one-handed Headmaster fit system adjusts height and circumference. Built-in and removable visor options give you two choices for constant coverage. LockDown dividers make helmet strap management clean and are easy to adjust. Soft, comfortable, moisture-wicking, and washable helmet pads. Reflective elements on back of helmet for enhanced visibility. Crash Replacement Guarantee provides a free helmet replacement if involved in a crash within the first year of ownership.