Duo Boots, UK Luxury boots in the widest range of calf sizes, up to 9 UK, 11 US, 43 EU

Under new ownership since mid 2020. Luxury boots available in a wide range of calf sizes from 30-50cm and medium and wide foot widths. NB while the Duo Boots site says boots go up to size 10 UK, the euro size is only 43 and the foot length is only 27cm. So you may need to go a size up & boots are likely to only fit you if you wear size 9 UK.