I got golden goose slide sneakers in navy denim and suede with white star.Im 40.5 most of the time, but in these im pretty confused, as size 40 was too snug, size 41 too loose.i just got them from farfetch and im still deciding what to do as i think they might get too loose with wear if i stay with size 41 as they are pretty loose.Size 40.5 would be perfect for me but now i really dont know and its hard to advice for somebody else you really need to try them on to be sure.Thank you