Jet Helmet, Big Size, Safety Standard Product (SG Standard/PSC Included), Compatible with All Motorcycle Displacement: Model Name: FX3 Size: Big Size (less than 24.0 - 24.4 inches (61 - 62 cm); Weight: Approx. 44.3 oz (1,180 g); Interior can be removed and washed; Chin Strap Clasp: One touch (specifications may vary depending on arrived) Thank you for your understanding. Depending on the model number, the size of the helmet may vary.LH-2: Front and back approx. 10.2 inches (26 cm), Width approx. 9.1 inches (23.2 cm), Height approx. 9.1 inches (23 cm), ES-3: Front and back approx. 10.2 inches (26 cm), Width approx. 9.6 inches (23.5 cm), Height approx. 9.8 inches (25.5 cm); Because of the product is imported from overseas, there may be fine scratches during manufacturing and scratches when it may be minor scratches when it is manufactured and during shipping. This product is not a quality product that is made in Japan, so please refrain from ordering if you are a nervous temperament. Please order only if you know it is an imported product.