This is a Dior x Ruby collaboration open-face (Jet) helmet, specifically the Ruby × Dior
"Monogram" limited-edition helmet.
* Core type: Ruby brand's classic open-face/Jet helmet, customized with Dior's signature Oblique monogram pattern, gold-tone hardware, and premium textured finish.
* It is a luxury collaborative model, not a mass-market standard helmet.
Size Guide for Dior × Vespa 946 Helmet
* Size L: Fits head circumference 59–60 cm
* Size XL: Fits head circumference 61–62 cm