Air Jordan 1 Retro High OG 'Obsidian'

UK 4 / US 4.5Y / EU 36.5 (GS)

UK 4.5 / US 5Y / EU 37.5 (GS)

UK 5 / US 5.5Y / EU 38 (GS)

UK 5.5 / US 6Y / EU 38.5 (GS)

UK 6 / US 6.5Y / EU 39 (GS)

UK 6 / US 7Y / EU 40 (GS)

UK 6.5 / US 7.5 / EU 40.5

UK 7 / US 8 / EU 41

UK 7.5 / US 8.5 / EU 42

UK 8 / US 9 / EU 42.5

UK 8.5 / US 9.5 / EU 43

UK 9 / US 10 / EU 44

UK 9.5 / US 10.5 / EU 44.5

UK 10 / US 11 / EU 45

UK 11 / US 12 / EU 46

UK 12 / US 13 / EU 47.5