The Dr. Martens 90cm yellow Round Lace is suitable for 4 - 5 eye shoes and boots. Package contains one pair of laces. They are made out of a natural, woven cloth. Dr. Martens shoelaces offer exceptional strength and durability. Tested in a lab for tensile strength, slip resistance and stretch under load, they meet or exceed all expectations for the people who demands strong and reliable laces for their footwear. Material: Cotton.