This probably shouldn't be in S&B as I'm digging up fashions from over 10 years ago! Back in 2002 (I remember the year because I remember the holiday I wore them on) I bought a pair of slip on, backless shoes that were Nike or some other famous trainer make. They looked sort of like trainers at the front and had trainer-like soles but had no backs so you slipped them on like mules. They cost a bloody fortune at the time but I wore them to death and loved them. They were so comfortable and looked casual without looking sporty. Do such things exist these days???