Even babies want to bike. From their first two-wheeled glide to their first bitty tumble, from the seat of the balance bike to the box of the cargo bike, Baby Nutty is the best in helmet comfort, style and safety. Features. Finally, the baby helmet you’ll both love: No pinch, no tears Fidlock magnetic buckle. Easy-on fit system grows with your toddler. Ergo-design for optimal bike seat posture. Lightweight in mold shell for growing bobble heads. Expanded Polystyrene (EPS) protective foam for high-impact protection. Front, top, and back venting. Integrated smile and compliment generator. Engineered, tested, and CPSC certified for 1 year and older. Lightweight for small heads, at 260 grams.