YSL Black Leather Rive Gauche Tote Bag, Left Bank Shopping Bag. From the custom leather to the hardware and silk screen printing, I demand perfection in every detail! ZP purchased the mold for customization. To be honest, this is the most challenging shopping bag I have ever encountered! The material is extremely complex, and it took repeated experiments to achieve the same feel as ZP! A must-have fashionable item for travel and business trips! Model: 509415, all-leather version. Size: 48x36x16cm.