New PRADA Shoes/Trainers - Size 37.5 *

New Prada Shoes/Trainers - had for a couple of years but never worn out as unfortunately feel too big! Have worn in the house for an hour at the most but no signs of wear to soles. Size says 37.5 (UK 4) but definitely more of a UK 5 to 5.5. I no longer have the box but I do have the grey Prada dustbag they came with.