These Onitsuka Tiger Mexico 66 sneakers were purchased in London and they are just too big! The US 5 1/2 is likely men’s sizing! I am a US ladies 6 and I needed just a size smaller. They are so fun and stylish and comfy. These are fashion and not made for sports! Please be aware of sizing on this sneaker, I think if you are about a ladies US 7 or 7.5 you could make them work. These are brand new with tags but without a box. If you are a guy looking for these kicks, and you are a US 5.5, these are your size.