Selestial in Black. Another stylish addition to our over the knee leather boots range. These black leather boots detail a tall block heel with platform, strap to the top and full fabric lining. Over-The-Knee Platform Boot. 4 inch heel. Material: Leather. Lining: Black. Buy this Boot and you can Save £40.00 OFF Selestial in Black Was £169.95 Now £129.95.