Finally kids can have a great fitting bike helmet that is easy to use. Solstice was developed through extensive research to offer protection and the best Youth Fit. It also features our one-handed Headmaster fit system to ensure a pain-free ride by accommodating a wide range of growing young cyclists. Key features - Intuitive, one-handed Headmaster fit system adjusts height and circumference - Built-in and removable visor options give you two choices for constant coverage - In-mold composite skeleton increases helmet integrity for larger vent variations - LockDown dividers make helmet strap management clean and are easy to adjust - Internal, recessed channels move airflow over your head to stay cool and dry - Reflective elements on back of helmet for enhanced visibility - Soft, comfortable, moisture-wicking, and washable helmet pads - Crash Replacement Guarantee provides a free helmet replacement if involved in a crash within the first year of ownership