These are pollard deadstock from the 1950s and 1960s and yarn boots, to northampton in england. They are a famous couture riding starter and the crafts on these riding boots are superb.
It's a brown rick leather with tanned trim and a little elastic hidden in the calf to easily pull on as well as pull the straps inside. They have never been worn and have been sitting in a closet for more than half a century.
The measurements are provided on the photos for a precise adjustment. They are labeled a mens 9.5 and also correspond to a woman 11. You won't find another pair like these and in this pristine state.