Here are some new / old stock, quality leather, spanish riding boots, brown leather, size eu41 which should be 7-7.5 uk. I, ll measure the insole for you to double check but my chart says it should be 25.4cm.
They have a large elasticated web on the back of the leg. I also have a black pair the same size, ignore the 8.5 on the box, i had 2 different size charts. This item is in the category "Sporting Goods\Equestrian\Riding Boots & Accessories\Long Riding Boots".The seller is "mechman61" and is located in this country: GB. This item can be shipped to United Kingdom.