This is a KASK Valegro lightweight helmet, size M. It fits head sizes 52-58cm. The shape is well-suited for Japanese head shapes. Weighing only 180g in size S, it's incredibly light, putting minimal strain on the neck. I've worn it less than 10 times, I believe. While there are no major, critical damages, there are some surface stains in places. Please understand that this is a used item. Original retail price: ¥31,900