Tuttio Ebike Snow Helmet & Ski Helmet The Tuttio Ebike Snow Style Helmet is not only stylish but also ideal for winter riding. Its snow-style design provides extra coverage and warmth, helping shield you from cold winds while keeping your head protected. Combined with the all-black finish, it delivers a bold look that matches perfectly with your winter gear. Helmet Size Measurement Guide Using a soft measuring tape, wrap it horizontally around your head, passing over the temples and across the widest part of the forehead.The measurement you obtain represents the correct head circumference to use when selecting a helmet size. Please note: Due to manual measurement, a deviation of 1–2 cm may occur. The actual product size shall prevail. Please note that accessories require a short preparation period before shipment. The standard delivery time for accessories is approximately 9–12 days. For accessories, returns or exchanges are only accepted in the case of confirmed quality issues. We are unable to accept returns for reasons such as personal preference or incorrect purchase.