Eu 43 is  US men's 9.5–10 or a US women's 11.5–12.

I bought for me to wear i take a  ladies 10. There perfect but decided I need more support no returns need more information or pics just ask

EU 43 generally converts to US 9.5–10 for men and US 11–11.5 for women.

Conversion Details

Men’s Shoes: An EU size 43 typically corresponds to a US men’s size 9.5 or 10 depending on the brand and shoe type, as sizing can vary slightly between manufacturers CoolConversion+1.

Women’s Shoes: For women, EU 43 usually converts to a US women’s size 11 or 11.5, reflecting the standard difference of about 1.5–2 sizes between men’s and women’s US scales