These fabulous knee high boots are a size UK 3 EU 36 by Steve Madden still in good condition, expensive when new 

They have a nubuck/Suede appearance 

I have just had these boots re healed

Info from website:-

DETAILS

This classic boot provides a mix of elegant riding style and biker chic. With elastic side inserts, round toe and an inside zip fastening. Finished with crossover ankle strap and double buckle detail.

PRODUCT INFORMATION

Material:leather

Colour: black

Brand:STEVE MADDEN

Lining Material:synthetic

Sole Material:synthetic

Heel:

Thanks for looking