I was lucky enough to find this pin striped oversized blazer from a local charity shop for under £10 and switched this up as a dress. The brand is discontinued, however you can find similar blazer dresses in most high streets. Unfortunately I haven't come across a pinstriped one but If its pin striped you want you can try an oversized blazer 2 or 3 sizes up from your actual size. This will give it the look of a dress and will fall beyond the crotch if big enough, if not you can wear shorts underneath. I love the classical feel of pin stripes and wearing them within an evening piece with a choker and some high heels creates a more boyfriend / rockstar look.