Nike size to cm clearance

Product Name: Nike size to cm clearance
Kind of a dumb question, but the sizes in cm mean the size of the whole shoe or just the size of the space inside (size of my foot)? : r/Nike clearance, Should you follow nike sizing chart? : r/BasketballTips clearance, Nike Shoes Size Chart - Soleracks clearance, Kind of a dumb question, but the sizes in cm mean the size of the whole shoe or just the size of the space inside (size of my foot)? : r/Nike clearance, Nike Air Max 97 CM Black Metallic Gold DC2190-001 Size US 4-14 Brand New | eBay clearance.