This is the Envelope Chain Wallet by Saint Laurent. This classic Envelope series has a design with YSL logo on the front flap and with a long chain strap. Made with chevron quilted grained leather in black, combined with silver hardware. Inside are slots for s and a zipper pocket. Will fit a iPhone 15 Pro Max. Can be long crossbody, or chain removed for a clutch. Bought in Helsinki 2024/9.