1460 Mono Smooth Leather Lace Up Boots in Black | Dr. Martens。New with tag. Black Smooth. MATERIAL Durable and famously stiff to start, our Smooth Leather can be polished to a dapper shine or artfully scuffed-up depending on your preference. Wipe away dirt using a damp cloth. Apply Dr. Martens Wonder Balsam to the outside of your footwear to keep the leather supple, strong and smooth. Once dry, buff vigorously to desired shine using a clean Dr. Martens Shoe Brush. Repeat regularly to prolong the life of your footwear.