Nike SFB Mountain/Undercover Mens Trainers BV4580 Sneakers (UK 10.5 US 11.5 EU 45.5, Obsidian University
Sold at Auction: NIKE, NIKE - Dunk SB Low Grateful Dead Bears Opti Yellow | Size US 11.5 EUR 45.5
La Sportiva Jackal Running Shoes - Men's, Black/Clay, — Mens Shoe Size: 12 US, Mens Shoe Width: Medium, Color: Black/Clay, Footwear Application: Trail Running — 46B-999909-45.5 - 1 out of 12 models
Each of these regions has 45.5m people. I posted a similar US only one of these a couple of months ago and people seemed to enjoy imagining them as countries, so this
Men's Shoe/Boot Conversion Size Chart EU to US – Encore Equestrian
Easy Shoe Size Conversion Charts » US | UK | EURO
Sutor Mantellassi Brown Shoes – Size: 12.5 US / 45.5 EU