The foam is included with the purchase of the helmet. You can also swap the helmet foam for another one later. Shell 1 fits foams 53 to 56, shell 2 fits foams 57 to 59, and shell 3 fits foams 60 to 63.Avoid distractions without compromising on aesthetics or safety. Ultra-lightweight, this helmet is suitable for everyone, including those new to the world of riding. Kooki Lady is the perfect blend of style, safety, and comfort. Furthermore, this helmet goes with any outfit. Light and comfortable to wear, it is ideal for both training and competition.IDEAL PERFORMANCE, ECLECTIC STYLENaturally combining style, safety, and comfort, the eclectic and versatile Kooki Lady adapts to all outfits. We designed this helmet to be both universal and unique so that it can be used by riders in all disciplines. Its dual-shell structure includes a robust expanded polystyrene and thermoformed polycarbonate inner shell, as well as a solid outer shell made of injection-moulded ABS. The internal lining ma......