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.