Size 43 is not a 9. The sizing notation of clothing items can often differ depending on the brand and type of garment. For example, in the US, women's shoe sizes are generally stated as a number, while men's sizes are indicated by character (e.g. 9M). That being said, international sizes may also follow different sizing conventions.
In general, when trying to determine your size in a particular garment or shoe, it's important to consult with the brand's size guide to make sure you get the right fit. measurements such as inseam, waist, and torso length may also be helpful in determining a good fit for pants, suits, dress shirts and outerwear.
In the case of size 43 shoes, it's difficult to provide a definitive answer without knowing the specific type of footwear and the size system being used. However, as a general rule, size 43 in European sizing would generally correspond to ladies' size 9US, or men's size 9.5US. It's also important to note that there can be a slight variation across different brands, and even different models from the same brand.
However, to be sure of the most accurate size and fit, we would recommend consulting the specific size guide provided by the brand you're looking to purchase from.
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