The shoes have never been worn. They come together with a container to make Swoosh ice cubes.
In the sun, the Swoosh and the rear tab on the shoe change colour.
Swoosh on the outside of the shoe = blue
Swoosh on the inside = yellow
Rear tab = pink

Description on the lid of the shoe box:
“ The Swoosh, the rear tab and the tongue of these AF1s have a UV-reactive surface. The intensity of the colour change depends on environmental conditions. After around 8 hours of exposure to UV light, the inks no longer change colour. The final colour varies and is unique for each pair of sneakers, depending on the environmental conditions and the UV light level the shoes are exposed to. Use the Swoosh tray to make ice cubes. Fill the tray with water and place it in the freezer until the water is frozen.”