Adidas us euro size one clearance

Product Name: Adidas us euro size one clearance
Are these two the same size? Why is US size different? Both Samba, white one was bought in Europe, green one in the US. Don't have them physically here so can't compare. : clearance, How to Convert Youth to Women's Shoe Sizes - 2023 clearance, Adidas 1.0 Intelligence Pearl Metallic Rare Running Shoes Size US 8 1/2 EUR 42 | eBay clearance, Are these two the same size? Why is US size different? Both Samba, white one was bought in Europe, green one in the US. Don't have them physically here so can't compare. : clearance, Size Charts clearance.