I bought these at Neiman Marcus in San Francisco some time in the early 2000s.
They are Manolo Blahnik kitten-heeled mules and just very easy to slip on and go. I tend to have wide feet (C) but these fit perfectly.
They are in Nude Leather with Grommits and Buckle Closure and a short Wooden Heel.
In the foot bed is a bit of puff padding below the leather inlay.