Ah no that’s made my heart drop a little faster in disappointment! Did this colorway exist in the Large? The dimensions provided on Vestiaire are 30x22x10cm.Welcome to the Purse Forum This looks to be authentic, but wait for Ellie to comment as well. I don't think this is a Large, though. It's too east-west, it looks like a Medium. Here's a Large Double Sided PS1: https://www.purseblog.com/proenza-schouler/proenza-schouler-ps1-leather-lined/